CN209391990U - Biopsy head and rotary cutter - Google Patents
Biopsy head and rotary cutter Download PDFInfo
- Publication number
- CN209391990U CN209391990U CN201821979499.5U CN201821979499U CN209391990U CN 209391990 U CN209391990 U CN 209391990U CN 201821979499 U CN201821979499 U CN 201821979499U CN 209391990 U CN209391990 U CN 209391990U
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- plane
- rib
- head ontology
- face
- empty avoiding
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Abstract
The utility model relates to a kind of Biopsy head and rotary cutter, Biopsy head includes puncturing head ontology.The lateral wall of puncturing head ontology is successively arranged the first inclined-plane, the second inclined-plane, third inclined-plane and the 4th inclined-plane being obliquely installed relative to the axis direction of puncturing head ontology.First inclined-plane, the second inclined-plane, third inclined-plane and the 4th inclined-plane, which converge at, a little forms needle point.First inclined-plane and the second inclined-plane form the first rib, and third inclined-plane and the 4th inclined-plane form the second rib.First rib and the second rib put the first edge on a knife or a pair of scissors processing formed cutting edge.The lateral wall of puncturing head ontology is additionally provided with the first empty avoiding face between the second inclined-plane and third inclined-plane.The utility model, the first empty avoiding face between the second inclined-plane and third inclined-plane is additionally provided with due to the lateral wall of puncturing head ontology, the thickness of puncturing head ontology can be reduced, in the case where guaranteeing that opening width is constant, the opened gap that puncturing head ontology is formed on skin tissues becomes smaller, wound area can so be reduced, be conducive to patient and restore.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly to a kind of Biopsy head and rotary cutter.
Background technique
When carrying out living body sampling to soft tissue in patient body, generallys use biopsy device and operated.Biopsy device
Including brake handle and the rotary cutter being installed on brake handle.Rotary cutter includes interior knife, the outer knife for being coated at interior knife
And the puncturing head positioned at outer cutter head portion.Outer knife is radially provided with sampling groove by front end, punctures after entering epidermis, in suction function
Lower soft tissue is inhaled into sampling groove, and soft tissue is cut and is contained in interior knife front end interior knife by rotary-cut forward at this time.Wherein, it please refers to
Figure 12, the lateral wall of traditional puncturing head are set there are four inclined-plane, and four inclined-planes converge at and a little form point of a knife, while four inclined-planes
Four ribs are formed, wherein two opposite ribs put the first edge on a knife or a pair of scissors to form two cutting edges, play cutting function of organization, in addition two opposite ribs
It does not put the first edge on a knife or a pair of scissors, plays a supporting role.However, since the thickness between two ribs not putting the first edge on a knife or a pair of scissors is larger, so that the radial direction of puncturing head is cut
Face area is larger, and it is big that puncturing head will lead to wound area in puncture process, is unfavorable for patient's recovery.
Summary of the invention
Based on this, it is necessary to overcome the deficiencies of existing technologies, provide a kind of Biopsy head and rotary cutter, it can subtract
Small wound area is conducive to patient and restores.
Its technical solution is as follows: a kind of Biopsy head, comprising: puncturing head ontology, the lateral wall of the puncturing head ontology
Be successively arranged the first inclined-plane, the second inclined-plane, third inclined-plane that are obliquely installed relative to the axis direction of the puncturing head ontology with
4th inclined-plane；First inclined-plane, second inclined-plane, the third inclined-plane and the 4th inclined-plane, which converge at, a little forms needle
Point；First inclined-plane and second inclined-plane form the first rib, and the third inclined-plane and the 4th inclined-plane form the second rib；
The processing of putting the first edge on a knife or a pair of scissors of first rib and second rib forms cutting edge；The lateral wall of the puncturing head ontology is additionally provided with positioned at described
The first empty avoiding face between second inclined-plane and the third inclined-plane.
Above-mentioned Biopsy head, in puncture process, the cutting edge of the first rib and the second rib can be by incision of skin, and gradually
It is deep into vivo.The first empty avoiding being additionally provided with due to the lateral wall of puncturing head ontology between the second inclined-plane and third inclined-plane
Face, the first empty avoiding face can reduce the thickness of puncturing head ontology, to guarantee the constant situation of opening width in puncture process
Under, the opened gap that puncturing head ontology is formed on skin tissues becomes smaller, and can so reduce wound area, and it is extensive to be conducive to patient
It is multiple.
In one of the embodiments, the lateral wall of the puncturing head ontology be additionally provided with positioned at first inclined-plane with it is described
The second empty avoiding face between 4th inclined-plane, the first empty avoiding face are oppositely arranged with the second empty avoiding face.
Second inclined-plane is close to the side of the needle point and the third inclined-plane close to institute in one of the embodiments,
The side for stating needle point forms third rib；First inclined-plane is close to the side of the needle point and the 4th inclined-plane close to the needle
It is tetragonous that the side of point forms the.
The third rib rounding off is tetragonous round and smooth to the first empty avoiding face, described in one of the embodiments,
Transit to the second empty avoiding face.
The first empty avoiding face and the second empty avoiding face are concave surface in one of the embodiments,；Described first keeps away
Empty face and the second empty avoiding face are arcwall face；Being spaced between the first empty avoiding face and the second empty avoiding face is separate
It is become larger on the direction of the needle point.
The angle between first rib and second rib is 20 degree~60 degree in one of the embodiments,.
The angle between first rib and second rib is 30 degree in one of the embodiments,.
First inclined-plane and axle center of second inclined-plane about the puncturing head ontology in one of the embodiments,
Direction is symmetrical arranged, and the third inclined-plane and the 4th inclined-plane are symmetrical arranged about the axis direction of the puncturing head ontology；
First inclined-plane, second inclined-plane, the third inclined-plane and the 4th inclined-plane are inner concave；First inclined-plane,
Second inclined-plane, the third inclined-plane and the 4th inclined-plane are arcwall face.
A kind of rotary cutter, comprising: the Biopsy head further includes knife pipe, the puncturing head ontology and the knife
Pipe is connected.
Above-mentioned rotary cutter, due to including the Biopsy head, technical effect is by Biopsy headband Lai with work
The technical effect for examining puncturing head is identical, without repeating.
The one end of the puncturing head ontology far from the needle point is cylindrical end in one of the embodiments,；The puncture
Head ontology one end and knife pipe interference fit, bonding connection or welded connecting far from the needle point.
Detailed description of the invention
Fig. 1 is a wherein viewing angle constructions figure for Biopsy head described in an embodiment of the present invention；
Fig. 2 is another viewing angle constructions figure of Biopsy head described in an embodiment of the present invention；
Fig. 3 is the side view at a Biopsy head wherein visual angle described in an embodiment of the present invention；
Fig. 4 is the side view at another visual angle of Biopsy head described in an embodiment of the present invention；
Fig. 5 is the front view of Biopsy head described in an embodiment of the present invention；
Fig. 6 is the structure chart of Biopsy head described in another embodiment of the utility model；
Fig. 7 is a wherein visual angle side view for Biopsy head described in another embodiment of the utility model；
Fig. 8 is another visual angle side view of Biopsy head described in another embodiment of the utility model；
Fig. 9 is the front view of Biopsy head described in another embodiment of the utility model；
Figure 10 is the structure chart of rotary cutter described in an embodiment of the present invention；
Figure 11 is the cross-sectional view of rotary cutter described in an embodiment of the present invention；
Figure 12 is the structure chart of the Biopsy head of the prior art.
Appended drawing reference:
10, puncturing head ontology, the 11, first inclined-plane, the 12, second inclined-plane, 13, third inclined-plane, the 14, the 4th inclined-plane, 15, first
Rib, the 16, second rib, the 17, first empty avoiding face, the 18, second empty avoiding face, 191, third rib, 192, tetragonous, 20, knife pipe.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result,
The feature of " first ", " second " can explicitly or implicitly include at least one of the features.In the description of the present invention,
The meaning of " plurality " is at least two, such as two, three etc., unless otherwise specifically defined.
In the description of the present invention, it should be understood that when an element is considered as " connection " another element,
It can be directly to another element or may be simultaneously present intermediary element.On the contrary, when element be referred to as " direct " and
When another element connects, intermediary element is not present.
In one embodiment, Fig. 1 to Fig. 5, a kind of Biopsy head, comprising: puncturing head ontology 10 are please referred to.It is described to wear
The lateral wall of tartar's ontology 10 is successively arranged the first inclined-plane being obliquely installed relative to the axis direction of the puncturing head ontology 10
11, the second inclined-plane 12, third inclined-plane 13 and the 4th inclined-plane 14.First inclined-plane 11, second inclined-plane 12, the third are oblique
Face 13 and the 4th inclined-plane 14, which converge at, a little forms needle point.First inclined-plane 11 forms first with second inclined-plane 12
Rib 15, the third inclined-plane 13 form the second rib 16 with the 4th inclined-plane 14.First rib 15 and second rib 16 are equal
Processing of putting the first edge on a knife or a pair of scissors forms cutting edge.The lateral wall of the puncturing head ontology 10 is additionally provided with oblique positioned at second inclined-plane 12 and the third
The first empty avoiding face 17 between face 13.
Above-mentioned Biopsy head, in puncture process, the cutting edge of the first rib 15 and the second rib 16 can by incision of skin, and
It is gradually deep into vivo.Since the lateral wall of puncturing head ontology 10 is additionally provided between the second inclined-plane 12 and third inclined-plane 13
First empty avoiding face 17, the first empty avoiding face 17 can reduce the thickness of puncturing head ontology 10, to guarantee to be open in puncture process
In the case that width is constant, the opened gap that puncturing head ontology 10 is formed on skin tissues becomes smaller, and can so reduce wound
Area is conducive to patient and restores.
Optionally, it is seamlessly transitted between first inclined-plane 12 and the 4th inclined-plane 13 of the puncturing head ontology 10,
Or form a rib not put the first edge on a knife or a pair of scissors.
Separately optionally, Fig. 2, Fig. 4 and Fig. 5 are please referred to, the lateral wall of the puncturing head ontology 10 is additionally provided with positioned at described the
The second empty avoiding face 18 between one inclined-plane 11 and the 4th inclined-plane 14, the first empty avoiding face 17 and the second empty avoiding face 18
It is oppositely arranged.In this way, the joint-cutting gap that puncturing head ontology 10 can be made to be formed on skin tissues further becomes smaller, can reduce
Wound area is conducive to patient and restores.
In one embodiment, please refer to Fig. 6 to Fig. 9, second inclined-plane 12 close to the needle point side with it is described
Third inclined-plane 13 forms third rib 191 close to the side of the needle point.First inclined-plane 11 close to the needle point side with
4th inclined-plane 14 forms the tetragonous 192nd close to the side of the needle point.In this way, the second inclined-plane 12 close to needle point side with
Third inclined-plane 13 forms third rib 191 close to the side of needle point, designs without empty avoiding, can guarantee that the structure of needle point is strong in this way
Degree, is not easy to stress and fractures；Similarly, the first inclined-plane 11 close to needle point side and the 4th inclined-plane 14 close to needle point side shape
It at the tetragonous 192nd, is designed without empty avoiding, is equally used for guaranteeing the structural strength of needle point, is not easy to stress and fractures.
Further, Fig. 6, Fig. 7, Fig. 8 or Figure 10,191 rounding off of third rib to first empty avoiding are please referred to
Face 17, tetragonous 192 rounding off to the second empty avoiding face 18.In this way, the needle point of puncturing head ontology 10 is pierced into skin
In organizational process, penetration Resistance is smaller, can mitigate the sense of discomfort in puncture process.In addition, being become from three conventional seamed edge joint-cuttings
Two seamed edge joint-cuttings, can be polished using single metal part or the integrated moldings such as forging obtain Biopsy head, easy to process, and be made
Cost is relatively low for work.
In one embodiment, Fig. 2 or Fig. 6 is please referred to, the first empty avoiding face 17 is with the second empty avoiding face 18
Concave surface.In this way, the needle point of puncturing head ontology 10 is pierced into during skin histology, penetration Resistance is smaller, can mitigate in puncture process
Sense of discomfort.
Further, the first empty avoiding face 17 and the second empty avoiding face 18 are arcwall face.The first empty avoiding face
Being spaced on the direction far from the needle point between 17 and the second empty avoiding face 18 becomes larger.In this way, puncturing head ontology
10 needle point is pierced into during skin histology, and penetration Resistance is smaller, can mitigate the sense of discomfort in puncture process.
In one embodiment, the angle between first rib 15 and second rib 16 is 20 degree~60 degree.In this way,
The needle point of puncturing head ontology 10 is pierced into during skin histology, and penetration Resistance is smaller, can mitigate the sense of discomfort in puncture process.It can
Selection of land, the angle between the first rib 15 and the second rib 16 is acute angle.Specifically, first rib 15 and second rib
Angle between 16 can be 30 degree.
In addition, further, please referring to Fig. 4, Fig. 6 or Fig. 7, the folder between the third rib 191 and the described tetragonous 192nd
Angle is 20 degree~60 degree.In this way, the needle point of puncturing head ontology 10 is pierced into during skin histology, penetration Resistance is smaller, can mitigate
Sense of discomfort in puncture process.Optionally, the angle between third rib 191 and the tetragonous 192nd is acute angle.Specifically,
Angle between third rib 191 and the tetragonous 192nd is 30 degree.
In one embodiment, Fig. 1, Fig. 3, Fig. 5, Fig. 8 or Fig. 9 are please referred to, first inclined-plane 11 and described second is oblique
Face 12 is symmetrical arranged about the axis direction of the puncturing head ontology 10, the third inclined-plane 13 and the 4th inclined-plane 14 about
The axis direction of the puncturing head ontology 10 is symmetrical arranged.In this way, the needle point of puncturing head ontology 10 is pierced into during skin histology,
Penetration Resistance is smaller, can mitigate the sense of discomfort in puncture process.
Further, first inclined-plane 11, second inclined-plane 12, the third inclined-plane 13 and the 4th inclined-plane 14
It is inner concave.First inclined-plane 11, second inclined-plane 12, the third inclined-plane 13 and the 4th inclined-plane 14 are arc
Shape face.It so, it is possible to further decrease wound area, penetration Resistance is smaller, can mitigate the sense of discomfort in puncture process.
In one embodiment, please refer to Figure 10 and Figure 11, only illustrated in Figure 10 and Figure 11 Biopsy head with
Knife pipe 20, remaining structure, such as interior knife, do not illustrate and.A kind of rotary cutter, comprising: above-mentioned any one embodiment institute
The Biopsy head stated further includes knife pipe 20, and the puncturing head ontology 10 is connected with the knife pipe 20.
Above-mentioned rotary cutter, due to including the Biopsy head, technical effect is by Biopsy headband Lai with work
The technical effect for examining puncturing head is identical, without repeating.
In one embodiment, the one end of the puncturing head ontology 10 far from the needle point is cylindrical end.In this way, puncturing this
When the one end of body far from needle point is cylindrical end, after being connected with knife pipe 20, it can guarantee that puncturing ontology and knife pipe 20 is coaxially disposed, and guarantees
Installation accuracy.Specifically, the one end of the puncturing head ontology 10 far from the needle point is interference fitted with the knife pipe 20, is Nian Jie
Connection is welded to connect.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. the lateral wall of a kind of Biopsy head, including puncturing head ontology, the puncturing head ontology is successively arranged relative to described
The first inclined-plane, the second inclined-plane, third inclined-plane and the 4th inclined-plane that the axis direction of puncturing head ontology is obliquely installed；Described first tiltedly
Face, second inclined-plane, the third inclined-plane and the 4th inclined-plane, which converge at, a little forms needle point, which is characterized in that
First inclined-plane and second inclined-plane form the first rib, and the third inclined-plane and the 4th inclined-plane form second
Rib；The processing of putting the first edge on a knife or a pair of scissors of first rib and second rib forms cutting edge；The lateral wall of the puncturing head ontology, which is additionally provided with, to be located at
The first empty avoiding face between second inclined-plane and the third inclined-plane.
2. Biopsy head according to claim 1, which is characterized in that the lateral wall of the puncturing head ontology is additionally provided with position
The second empty avoiding face between first inclined-plane and the 4th inclined-plane, the first empty avoiding face and second empty avoiding face phase
To setting.
3. Biopsy head according to claim 2, which is characterized in that second inclined-plane is close to the side of the needle point
Third rib is formed close to the side of the needle point with the third inclined-plane；Side and institute of first inclined-plane close to the needle point
Stating the 4th inclined-plane, close to the side of the needle point to form the tetragonous.
4. Biopsy head according to claim 3, which is characterized in that the third rib rounding off to described first is kept away
Empty face, the tetragonous rounding off to the second empty avoiding face.
5. Biopsy head according to claim 2, which is characterized in that the first empty avoiding face and the second empty avoiding face
It is concave surface；The first empty avoiding face and the second empty avoiding face are arcwall face；The first empty avoiding face is kept away with described second
Being spaced on the direction far from the needle point between empty face becomes larger.
6. Biopsy head according to claim 1, which is characterized in that the folder between first rib and second rib
Angle is 20 degree~60 degree.
7. Biopsy head according to claim 6, which is characterized in that the folder between first rib and second rib
Angle is 30 degree.
8. Biopsy head according to claim 1, which is characterized in that first inclined-plane and second inclined-plane about
The axis direction of the puncturing head ontology is symmetrical arranged, and the third inclined-plane and the 4th inclined-plane are about the puncturing head ontology
Axis direction be symmetrical arranged；First inclined-plane, second inclined-plane, the third inclined-plane and the 4th inclined-plane are interior
Concave surface；First inclined-plane, second inclined-plane, the third inclined-plane and the 4th inclined-plane are arcwall face.
9. a kind of rotary cutter characterized by comprising the Biopsy head as described in claim 1 to 8 any one, also
Including knife pipe, the puncturing head ontology is connected with the knife pipe.
10. rotary cutter according to claim 9, which is characterized in that the puncturing head ontology far from the needle point one
End is cylindrical end；The one end of the puncturing head ontology far from the needle point and knife pipe interference fit, bonding connection or welding
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821979499.5U CN209391990U (en) | 2018-11-28 | 2018-11-28 | Biopsy head and rotary cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821979499.5U CN209391990U (en) | 2018-11-28 | 2018-11-28 | Biopsy head and rotary cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209391990U true CN209391990U (en) | 2019-09-17 |
Family
ID=67881046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821979499.5U Active CN209391990U (en) | 2018-11-28 | 2018-11-28 | Biopsy head and rotary cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209391990U (en) |
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2018
- 2018-11-28 CN CN201821979499.5U patent/CN209391990U/en active Active
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