CN208659582U - A kind of lymph node pilot pin - Google Patents
A kind of lymph node pilot pin Download PDFInfo
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- CN208659582U CN208659582U CN201721294620.6U CN201721294620U CN208659582U CN 208659582 U CN208659582 U CN 208659582U CN 201721294620 U CN201721294620 U CN 201721294620U CN 208659582 U CN208659582 U CN 208659582U
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- needle body
- circular sliding
- sliding slopes
- lymph node
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Abstract
The utility model belongs to the field of medical instrument technology, more particularly to a kind of lymph node pilot pin, barb including needle body and set on needle body front end, barb includes circular sliding slopes section and straight section, and one end and the needle body of circular sliding slopes section are smoothly connected, and the other end and the straight section of circular sliding slopes section are smoothly connected, wherein circular sliding slopes section and needle body coplanar arrangement, straight section stretches out outside the plane determined by circular sliding slopes section and needle body, and the radius of curvature of circular sliding slopes section is 1.25mm, and the length of straight section is 5mm.The lymph node pilot pin of the utility model has forniciform barb, barb flexible deformation in use, it effectively avoids causing Peripheral Vascular Injuries because of patient's movement after barbs hold lymph node, it can be used for being less than diameter the lymph node precise positioning of 2.2mm simultaneously, and when the recurrent small lymph node to neck such as thyroid cancer carries out 2~3 operations, minimize internal influence of the already present surgical scars to success rate of operation.
Description
Technical field
The utility model belongs to the field of medical instrument technology, and in particular to a kind of lymph node pilot pin.
Background technique
Lymph node pilot pin is a kind of preoperative operation needle executed under ultrasound, for positioning tiny metastatic or suspicious
Lymphnode metastatic, to make Lymph node biopsy or when Pulmonary resections are safer quick and incisional wound small use
It is first put at quasi- removal of lesions with pilot pin before surgery, position and the range of lesion is positioned, then according to the guide of pilot pin
Lesion is correctly found, incisional wound is small, greatly reduces the resection of normal tissue.Now there is no dedicated lymph nodes to position
Needle is mostly replaced using Intraductal lesions, and existing Intraductal lesions are chiefly used in positioning non-palpable breast mass, pilot pin such as Fig. 3 institute
Show, be typically provided longer needle body 1, then needle body front end be arranged barb 2, and the barb of existing pilot pin be fixedly, can
It cuts office or Breast-consering surgery is safer quick and incisional wound is small, but since corpus mamma is thicker, the length of hook is greater than 5mm,
Used following deficiency using there is no problem in mammary gland, but in lymph node positioning: (1) straight hook and its needle point hold after positioning
It easily moves because patient body position changes, if surrounding easily leads to damage there are important blood vessels, therefore is not suitable at rich blood vessel position
As armpit or neck position suspected malignant lymph node；(2) existing barb length about 10mm can position mammary gland knot
Section, but for the recurrent small lymph node of neck malignant tumor (minimum even 2-3mm), since barb is too long, barb positioning
End afterwards outside small lymph node, can not barb live target lymph node and precise positioning can not be guided.
Utility model content
Existing pilot pin straight hook easily because patient change due to move cause injury of blood vessel aiming at the problem that, the utility model
It is designed to provide a kind of lymph node pilot pin with forniciform barb, so that barb effectively be avoided to cause blood because mobile
Pipe damage.
The utility model provides the following technical solution:
A kind of lymph node pilot pin, the barb including needle body and set on needle body front end, the barb include circular sliding slopes section
And straight section, one end and the needle body of circular sliding slopes section are smoothly connected, the other end and the straight section of circular sliding slopes section are smoothly connected, wherein justifying
Arc linkage section and needle body coplanar arrangement, straight section stretch out outside the plane determined by circular sliding slopes section and needle body.
The barb of the lymph node pilot pin of the utility model is made of circular sliding slopes section and straight section, and wherein needle body, circular arc connect
It connects section and straight section is successively smoothly connected, needle body and circular sliding slopes section coplanar arrangement, and straight section stretches out needle body and circular sliding slopes section
Outside identified plane, such straight section encounters lymph in hook and has certain snubber elastomeric, avoids straight section and hooks lymph node
Peripheral vessels are scratched because mobile in the process, certain Bending Deformation can also occur for circular sliding slopes section, further enhance barb
Snubber elastomeric.
As a kind of improvement of the utility model, projection of the straight section in the plane determined by circular sliding slopes section and needle body
For line segment, the line segment was located at the endpoint that circular sliding slopes section is connect with straight section and connected with the needle body rectilinear deviation circular arc that hangs down
Connect a section side.Make straight section be biased to needle body side in this way to stretch upwards, position more convenient.
As a kind of improvement of the utility model, the line segment be located at the endpoint that circular sliding slopes section is connect with straight section and with
The close needle body side of the parallel straight line of needle body.Straight section further stretches to needle body in this way, improves positional accuracy.
As a kind of improvement of the utility model, the endpoint that the circular sliding slopes section is connect with needle body was located at circular sliding slopes
It the endpoint that is connect with straight section of section and hangs down rectilinear circular sliding slopes section side with needle body.Circular sliding slopes section can be made corresponding in this way
Biggish central angle, circular sliding slopes section can deformation elasticity increase.
As a kind of improvement of the utility model, the radius of curvature of the circular sliding slopes section is 1.25mm, the straight section
Length is 5mm.The lymph node pilot pin can be made to be less than the lymph node precise positioning of 2.2mm to diameter, to neck such as thyroid gland
When the recurrent small lymph node of cancer carries out 2~3 operations, existing influence of the surgical scars to success rate of operation in vivo is down to most
It is small.
As a kind of improvement of the utility model, the barb is integrally bent by steel wire, and the radius of steel wire used is
1mm.Convenient for the bending forming of barb.
The beneficial effects of the utility model are as follows:
The lymph node pilot pin of the utility model has forniciform barb, and the circular sliding slopes section and straight section of barb were using
There is curved snubber elastomeric in journey, can effectively avoid barb and causing injury of blood vessel because of patient's movement after hooking lymph node,
It can be used for being less than diameter the lymph node precise positioning of 2.2mm simultaneously, and in the small leaching of recurrent to neck such as thyroid cancer
When fawning on 2~3 operations of carry out, existing influence of the surgical scars to success rate of operation in vivo is minimized.
Detailed description of the invention
Fig. 1 is the configuration diagram of the lymph node pilot pin of the utility model.
Fig. 2 is that the lymph node pilot pin in Fig. 1 is shown in circular sliding slopes section and a kind of orthographic projection in the determined plane of needle body
Figure.
Fig. 3 is the configuration diagram of existing Intraductal lesions.
In figure: 1, needle body, 2, barb, 21, circular sliding slopes section, 22, straight section, 3, cross the end that connect with straight section of circular sliding slopes section
Point and the straight line vertical with needle body, 4, cross circular sliding slopes section with the endpoint that straight section connects and the straight line parallel with needle body.
Specific embodiment
1~2 specific embodiment of the present utility model is described further with reference to the accompanying drawing.
As shown in Fig. 1~2, a kind of lymph node pilot pin, including needle body 1 and set on the barb 2 of needle body front end, wherein barb
Including circular sliding slopes section 21 and straight section 22, one end and the needle body of circular sliding slopes section are connected smoothly, and circular sliding slopes Duan Yuzhen
Body coplanar arrangement, the other end and the straight section of circular sliding slopes section are connected smoothly, and straight section stretches out circular sliding slopes section and needle body institute
Outside determining plane, the radius of curvature of circular sliding slopes section is 1.25mm, and the length of straight section is 5mm, and further, barb is by steel wire
It integrally bends, the radius of steel wire is 1mm.
To further increase the accurate positionin of lymph node pilot pin, and facilitate operation, straight section is by circular sliding slopes Duan Yuzhen
It is projected as line segment in plane determined by body, which was located at the endpoint that circular sliding slopes section is connect with straight section and hung down with needle body
The deviation circular arc linkage section side of straight straight line 3, while being located at endpoint that circular sliding slopes section is connect with straight section and flat with needle body
The close needle body side of capable straight line 4 makes straight hook at the trend for deviating from circular sliding slopes section.
For the flexible deformation degree for increasing circular sliding slopes section, the endpoint that circular sliding slopes section is connect with needle body was located at circular arc
It endpoint that linkage section is connect with straight section and hangs down rectilinear circular sliding slopes section side with needle body, such circular sliding slopes section is corresponding
Central angle is big, can deformation degree it is big.
The lymph node pilot pin of the utility model when in use, can be first put into stylophore used in Intraductal lesions, then send
Enter in vivo, due to there is forniciform barb, barb encounters flexible deformation when drag, effectively avoids hooking after lymph node because suffering from
Person is mobile and causes injury of blood vessel, and can be used for the lymph node precise positioning that diameter is less than 2.2mm, to neck such as thyroid cancer
Recurrent small lymph node carry out 2~3 operations when, in vivo influence of the already present surgical scars to success rate of operation be down to most
It is small.
Claims (6)
1. a kind of lymph node pilot pin, the barb including needle body and set on needle body front end, which is characterized in that the barb includes circle
Arc linkage section and straight section, one end and the needle body of circular sliding slopes section are smoothly connected, and the other end of circular sliding slopes section smoothly connects with straight section
It connects, wherein circular sliding slopes section and needle body coplanar arrangement, straight section stretches out outside the plane determined by circular sliding slopes section and needle body.
2. lymph node pilot pin according to claim 1, which is characterized in that straight section is true by circular sliding slopes section and needle body institute
Line segment is projected as in fixed plane, and the line segment was located at the endpoint that circular sliding slopes section is connect with straight section and vertical with needle body
The deviation circular arc linkage section side of straight line.
3. lymph node pilot pin according to claim 2, which is characterized in that the line segment was located at circular sliding slopes Duan Yuzhi
The close needle body side of the endpoint of section connection and the straight line parallel with needle body.
4. lymph node pilot pin according to claim 2 or 3, which is characterized in that the circular sliding slopes section is connect with needle body
Endpoint be located at endpoint that circular sliding slopes section is connect with straight section and hung down rectilinear circular sliding slopes section side with needle body.
5. lymph node pilot pin according to claim 1 or 2 or 3, which is characterized in that the curvature of the circular sliding slopes section half
Diameter is 1.25mm, and the length of the straight section is 5mm.
6. lymph node pilot pin according to claim 1 or 2 or 3, which is characterized in that the barb is integrally bent by steel wire
It forms, the radius of steel wire used is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294620.6U CN208659582U (en) | 2017-10-09 | 2017-10-09 | A kind of lymph node pilot pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294620.6U CN208659582U (en) | 2017-10-09 | 2017-10-09 | A kind of lymph node pilot pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208659582U true CN208659582U (en) | 2019-03-29 |
Family
ID=65820416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721294620.6U Active CN208659582U (en) | 2017-10-09 | 2017-10-09 | A kind of lymph node pilot pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208659582U (en) |
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2017
- 2017-10-09 CN CN201721294620.6U patent/CN208659582U/en active Active
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