CN101984922B

CN101984922B - Multi-axial puncture instrument for internal deep tissues

Info

Publication number: CN101984922B
Application number: CN2010105246847A
Authority: CN
Inventors: 常金兰; 王崇宇; 刘苗生; 刘泰华
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-29
Filing date: 2010-10-29
Publication date: 2012-11-21
Anticipated expiration: 2030-10-29
Also published as: CN101984922A

Abstract

The invention discloses a multi-axial puncture instrument for internal deep tissues, which comprises a puncture needle and a puncture cannula, wherein the needle head end of the puncture needle has a tapered cut; a side opening is reserved on the puncture cannula; an elastic tongue piece is arranged on the rim of the side opening close to a cannula head; one end of the elastic tongue piece is fixed on the cannula wall of the puncture cannula, and the other end of the elastic tongue piece is extended into a cannula cavity; the needle head end is a bent section; the curvature radius of the bent section is 1 to 10 times the length of the bent section; two outlets are reserved on the puncture cannula; and the needle head end can be extended out from the side opening of the puncture cannula along the inclination direction of the elastic tongue piece to perform minimally invasive treatment on the surrounding tissues of the puncture cannula, and also can jack the elastic tongue piece up to be extended out from the cannula head of the puncture cannula so as to perform the minimally invasive treatment on the axial tissues of the puncture cannula. Therefore, the multi-axial puncture instrument for the internal deep tissues can perform treatment along at least two axial directions on a correspondingly larger treatment area after once intervention and insertion, and the area of tissues damaged by the intervention and insertion is relatively smaller.

Description

In a kind of body the multiaxis of deep tissue to perforator

Technical field

The present invention relates to perforator, the multiaxis that is specifically related to deep tissue in a kind of body to perforator.

Background technology

Perforator be percutaneous get involved the back to in-vivo tissue (like the deep tissues of breast, Intraabdominal internal organs and brain, nerve, blood vessel and body of gland etc.) position, expand, implantation, radio frequency, melt, injection, anesthesia, biopsy is extracted and minimally-invasive treatment operating equipment such as operation.The structure of perforators such as injection, biopsy extraction, anesthesia and operation commonly used comprises puncture casing and puncture needle at present; Puncture casing commonly used is generally lumen diameter and is about 0.6～6mm; Length is about the hollow pipe of 20～300mm, is processed by harmless materials such as rustless steel, and puncture needle commonly used is generally the about 0.1～6mm of external diameter; The hollow elasticity needle body of the about 50～350mm of length is processed by highly elastic materials such as harmless rustless steel, carbon fiber and fiber optics.Earlier the puncture casing percutaneous being got involved in during puncture needs the location, nearly tissue place of handling, then puncture needle is stretched out by tube head from the tube chamber that the pipe tail inserts puncture casing, to the tissue that need are handled inject, biopsy extraction, anesthesia and operation etc.Puncture needle commonly used at present is the craspedodrome needle body; Needle end is provided with angular cut, and the tube head of puncture casing is a round mouth, and tube chamber is for beginning to keep straight on from the pipe tail from managing craspedodrome single tube or the tube chamber that tail to tube head all is craspedodrome; The arc single tube that just is convexly curved at nearly tube head place; For keeping straight on axially, be that diagonal is axial when the puncture needle of arc single tube stretches out when the puncture needle of craspedodrome single tube stretches out, above-mentioned two kinds of puncture casing all be puncture needle when stretching out craspedodrome or the single shaft of diagonal to perforator.Single shaft to perforator make puncture needle can only single shaft to few zone of near axis obtain puncture and implement treatment, the outer most of zones of axis then become the blind area, can only make simple minimally-invasive treatment so once get involved to keep somewhere; To the treatment of larger area pathological tissues, just need repeatedly to get involved to keep somewhere just to accomplish treatments such as injection, biopsy extraction, anesthesia and operation, treatment time is increased; Get involved tissue damaged's enlarged areas; The treatment risk improves, and the treatment difficulty increases, and patient's misery index raises.For each area of organizing of keeping somewhere treatments such as increasing injection, biopsy extraction, anesthesia and operation of getting involved; Publication number is CN2378008, and open day is 2000.05.17, and name is called a kind of utility model of dual pathways puncture anesthetic needle; Then disclose by straight tube passage and curved channel form dual pathways pipeline; Once get involved to keep somewhere and can insert two nook closing members simultaneously, a nook closing member axially stretches out for keeping straight on, and another axially stretches out for diagonal; Institute thinks multiaxis to perforator, can accomplish dura mater anesthesia and lumbar anesthesia; Though this utility model can reach multiaxis to the puncture for treating purpose; Once get involved the corresponding increase of anesthesia area of keeping somewhere; But the pin chamber of needle body is two, and the volume of needle body is with regard to corresponding increase, and it is corresponding just bigger that back tissue damaged area is kept somewhere in each intervention; Do not reach the requirement of minimally-invasive treatment, increased patient's wound face and misery index.

Summary of the invention

The multiaxis that technical problem to be solved by this invention provides deep tissue in a kind of body to perforator; This lancet device is once got involved and is just kept somewhere and can treat on axial at least two; The treatment area is corresponding bigger, and gets involved the less advantage of tissue damaged's area of keeping somewhere.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: in a kind of body the multiaxis of deep tissue to perforator, comprise the puncture casing of puncture needle and craspedodrome, said puncture needle comprises backshank end and needle end; Said needle end is provided with angular cut, and the length of said puncture needle is 50～350mm, and external diameter is 0.1～5.8mm; Said puncture casing comprises tube head, pipe tail and tube chamber; Said puncture casing length is 20～300mm, and said lumen diameter is 0.6～6mm, is provided with the side opening that diameter is 0.6～8mm from tube head 3～10mm place on the said puncture casing; The nearly tube head edge of said side opening is provided with elastic tongue piece; The length of said elastic tongue piece is 0.6～6mm, and the positioning end of said elastic tongue piece is fixedly connected with the tube wall of said puncture casing, and the movable end of said elastic tongue piece stretches in the said tube chamber to said pipe tail direction is oblique from said side opening; The movable end of said elastic tongue piece does not pass the axis of said tube chamber; The angle of the extended line of said elastic tongue piece and the axis of said tube chamber is 10～45 degree, and said needle end is made as bending section, and the length of said bending section is 5～50mm; The radius of curvature of said bending section is 1～10 times of said bending section length, and the angle of the tangent plane of said angular cut and the outer tangent line of said bending section is 5～60 degree.

Said needle length is 150mm; Said puncture casing length is 100mm, and the length of said bending section is 30mm, and the radius of curvature of said bending section is 5 times of said bending section length; The angle of the tangent plane of said angular cut and the outer tangent line of said bending section is 20 degree; The external diameter of said puncture needle is 3mm, and said lumen diameter is 3.3mm, and the diameter of said side opening is 3.6mm; The length of said elastic tongue piece is 3mm, and the angle of the extended line of said elastic tongue piece and the axis of said tube chamber is 30 degree; Because puncture needle is that elastomeric material is processed, can extend in the puncture casing distortion, than long time, radius of curvature is corresponding can be shorter at puncture casing length, needle length, bending section girth, and promptly curvature can be more a little bigger, also can pass through puncture casing smoothly.

Said needle length is 50mm; Said puncture casing length is 20mm, and the length of said bending section is 5mm, and the radius of curvature of said bending section is 10 times of said bending section length; The angle of the tangent plane of said angular cut and the outer tangent line of said bending section is 60 degree; The external diameter of said puncture needle is 0.2mm, and said lumen diameter is 0.6mm, and the diameter of said side opening is 0.6mm; The length of said elastic tongue piece is 0.6mm, and the angle of the extended line of said elastic tongue piece and the axis of said tube chamber is 60 degree; Puncture casing, puncture needle, bending section are all more in short-term; The radius of curvature of bending section just should be bigger; This moment is in order to stretch out puncture needle from side opening; The angle of the axis of the angle of the tangent plane of angular cut and the outer tangent line of bending section and the extended line of elastic tongue piece and tube chamber is just corresponding bigger, so that can stretch out from side opening smoothly.

Said needle length is 350mm; Said puncture casing length is 300mm, and the length of said bending section is 50mm, said bending section radius of curvature be 2 times of said bending section length; The angle of the tangent plane of said angular cut and the outer tangent line of said bending section is 6 degree; The external diameter of said puncture needle is 5.8mm, and said lumen diameter is 6mm, and the diameter of said side opening is 8mm; The length of said elastic tongue piece is 6mm, and the angle of the extended line of said elastic tongue piece and the axis of said tube chamber is 10 degree; Bending section radius of curvature shorter, explain that curvature is bigger, the angle of the axis of the extended line of the angle of the outer tangent line of the tangent plane of angular cut and bending section and elastic tongue piece and tube chamber hour also can stretch out from side opening smoothly so.

Compared with prior art, the multiaxis that the invention has the advantages that deep tissue in a kind of body to perforator, comprise the puncture casing of puncture needle and craspedodrome; Puncture needle comprises backshank end and needle end, and needle end is provided with angular cut, and the length of puncture needle is 50～350mm; External diameter is 0.1～5.8mm, and puncture casing comprises tube head, pipe tail and tube chamber, and puncture casing length is 20～300mm; Lumen diameter is 0.6～6mm, is provided with the side opening that diameter is 0.6～8mm from tube head 3～10mm place on the puncture casing, and the nearly tube head edge of side opening is provided with elastic tongue piece; The length of elastic tongue piece is 0.6～6mm, and the positioning end of elastic tongue piece is fixedly connected with the tube wall of puncture casing, the movable end of elastic tongue piece from side opening to pipe tail direction oblique stretching in the tube chamber; The movable end of elastic tongue piece does not pass the axis of tube chamber; The angle of the extended line of elastic tongue piece and the axis of tube chamber is 10～45 degree, and needle end is made as bending section, and the length of bending section is 5～50mm; The radius of curvature of bending section is 1～10 times of bending section length, and the angle of the tangent plane of angular cut and the outer tangent line of bending section is 5～60 degree; Puncture casing has two outlets like this; When puncture needle inserts the oblique direction that stretches into of angular cut and the elastic tongue piece of tube chamber and needle end in the same way the time from the pipe tail, needle end is just stretched out along the oblique side opening to puncture casing of elastic tongue piece, and the peripheral tissue of puncture casing is carried out minimally-invasive treatment; Rotate puncture casing gently and just can also carry out minimally-invasive treatment other peripheral tissue of puncture casing; Rotation relatively repeatedly gets involved tissue influence just lessly gently, if the oblique direction that stretches into of the angular cut of needle end and elastic tongue piece is when reverse, needle end is just stretched out the tube head of elastic tongue piece jack-up from puncture casing; Axial tissue to puncture casing carries out minimally-invasive treatment; Keep straight on and oblique function because this perforator has, once get involved keep somewhere can to the periphery of puncture casing with axially organize inject, minimally-invasive treatments such as biopsy extraction, anesthesia and operation, the minimally-invasive treatment area is bigger; Therapeutic effect is better; Because only just can bring into play two-tube effect with single tube, corresponding puncture casing caliber just can reduce, so each intervention is kept somewhere corresponding littler than two-tube to tissue damaged's area.Therefore the present invention is that a kind of once the intervention just kept somewhere and can be treated on axially at least two, and the treatment area is corresponding bigger, and the multiaxis of getting involved the less interior deep tissue of body of tissue damaged's area of keeping somewhere to perforator.

Description of drawings

Fig. 1 is a perforator structural representation of the present invention.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Embodiment 1

In a kind of body as shown in Figure 1 the multiaxis of deep tissue to perforator, comprise puncture needle 1 and the puncture casing 2 of keeping straight on, puncture needle 1 comprises backshank end 11 and needle end 12; Needle end 12 is provided with angular cut 13, and the length of puncture needle 1 is 150mm, and external diameter is 3mm; Puncture casing 2 comprises tube head 21, pipe tail 22 and tube chamber 23, and puncture casing 2 length are 100mm, and tube chamber 23 diameters are 3.3mm; 3～10mm place from tube head 21 on the puncture casing 2 is provided with the side opening 24 that diameter is 3.6mm; Nearly tube head 21 edges of side opening 24 are provided with elastic tongue piece 3, and the length of elastic tongue piece 3 is 3mm, the positioning end 31 of elastic tongue piece 3 with the tube wall of puncture casing 1 of nearly tube head 21 be fixedly connected; The movable end 32 of elastic tongue piece 3 from side opening 24 to pipe tail 22 directions oblique stretching in the tube chamber 23; The movable end 32 of elastic tongue piece 3 does not pass the axis with tube chamber 23, and the angle of the axis of the extended line of elastic tongue piece 3 and tube chamber 23 is 30 degree, and puncture needle 1 is the section 14 of keeping straight on from backshank end 11 to the 120mm from backshank end 11; The needle end 12 of puncture needle 1 is made as bending section 15; Bending section 15 length are 30mm, and the radius of curvature of bending section 15 is 150 mm, and the angle of the outer tangent line of the tangent plane of angular cut 13 and bending section 15 is 20 degree; Because puncture needle is that highly elastic material is processed; So in puncture casing length than long time; Bending section is also established than long time; The radius of curvature of bending section be bending section length more than 1 times the time, can pass from puncture casing more smoothly, again because the above-mentioned correlation coefficient between this three of angle of the outer tangent line of the tangent plane of the radius of curvature of the angle of elastic tongue piece and tube chamber axis, bending section and angular cut and bending section is supporting mutually; Puncture needle can more conveniently be stretched out from side opening or tube head, carry out minimally-invasive treatment; Because the puncture needle bending section is arc, can turn to adjustment, so after stretching out from side opening, can avoid osteoarthrosis and vitals, can carry out minimally-invasive treatment to unapproachable the organizing also of general perforator.

Embodiment 2

Basic identical with embodiment 1, different just puncture needle 1 length be 50mm, puncture casing 2 length are 20mm; Puncture needle 1 is the section of keeping straight on from backshank end 11 to the 45mm from backshank end 11, and the needle end 12 of puncture needle 1 is made as bending section 15, and bending section 15 length are 5mm; The radius of curvature of bending section 15 is 50mm, and the angle of the outer tangent line of the tangent plane of angular cut 13 and bending section 15 is 60 degree, and the external diameter of puncture needle is 0.2mm; Tube chamber 23 diameters are 0.6mm; The diameter of side opening 24 is 0.6mm, and the length of elastic tongue piece 3 is 0.6mm, and the angle of the axis of the extended line of elastic tongue piece 3 and tube chamber 23 is 60 degree.

Embodiment 3

Basic identical with embodiment 1, different just puncture needle 1 length be 350mm, puncture casing 2 length are 300mm; The 300mm place of the backshank end 11 of puncture needle 1 to luxuriant backshank end 11 is the section of keeping straight on, and the needle end 12 of puncture needle 1 is made as bending section 15, and bending section 15 length are 50mm; Bending section 15 radius of curvature be 50mm, the angle of the outer tangent line of the tangent plane of angular cut 13 and bending section 15 be 6 the degree, the external diameter of puncture needle 1 is 5.8mm; Tube chamber 23 diameters are 6mm; The diameter of side opening 24 is 8mm, and the length of elastic tongue piece 3 is 6mm, and the angle of the axis of the extended line of elastic tongue piece 3 and tube chamber 23 is 10 degree.

The foregoing description is just given an example to of the present invention; In actual production; Will be according to the elasticity of puncture needle material; The length of puncture casing, puncture needle and bending section is confirmed suitable bending section radius of curvature, and puncture needle can be passed from puncture casing more smoothly, and the present invention is suitable for the range of curvature radius of current material.According to the bending section radius of curvature, the angle of the outer tangent line of the angle of the extended line of appropriate design elastic tongue piece and the axis of tube chamber and the tangent plane of angular cut and bending section so that puncture needle both can stretch out from tube head smoothly, can stretch out from side opening again smoothly again.Can obtain matching relationship suitable between them in the parameter area of above-mentioned each characteristic of the present invention, differ at this and one enumerate.

The actual elasticity that adds the puncture casing in man-hour is all better; As long as at the nearly tube head place of puncture casing, cut a circle or an oval breach from pipe Caudad tube head direction, except that the part of reserving elastic tongue piece; The casing wall of other circle breach is cut; Simultaneously elastic tongue piece is depressed in tube chamber, the movable end of elastic tongue piece should be suspended in more than the tube chamber axis, and what just make that the present invention needs promptly has a side opening puncture casing of flexible tongue piece again.

Claims

In the body multiaxis of deep tissue to perforator, comprise the puncture casing of puncture needle and craspedodrome, said puncture needle comprises backshank end and needle end; Said needle end is provided with angular cut, and the length of said puncture needle is 50～350mm, and external diameter is 0.1～5.8mm; Said puncture casing comprises tube head, pipe tail and tube chamber; Said puncture casing length is 20～300mm, and said lumen diameter is 0.6～6mm, it is characterized in that being provided with the side opening that diameter is 0.6～8mm from tube head 3～10mm place on the said puncture casing; The nearly tube head edge of said side opening is provided with elastic tongue piece; The length of said elastic tongue piece is 0.6～6mm, and the positioning end of said elastic tongue piece is fixedly connected with the tube wall of said puncture casing, and the movable end of said elastic tongue piece stretches in the said tube chamber to said pipe tail direction is oblique from said side opening; The movable end of said elastic tongue piece does not pass the axis of said tube chamber; The angle of the extended line of said elastic tongue piece and the axis of said tube chamber is 10～45 degree, and said needle end is made as bending section, and the length of said bending section is 5～50mm; The radius of curvature of said bending section is 1～10 times of said bending section length; The angle of the tangent plane of said angular cut and the outer tangent line of said bending section is 5～60 degree, and when puncture needle inserts the oblique direction that stretches into of angular cut and the elastic tongue piece of tube chamber and needle end in the same way the time from the pipe tail, needle end is just stretched out along the oblique side opening to puncture casing of elastic tongue piece; Peripheral tissue to puncture casing carries out minimally-invasive treatment; Stretch into direction when reverse when the angular cut of needle end and elastic tongue piece are oblique, needle end is just stretched out the tube head of elastic tongue piece jack-up from puncture casing, and the axial tissue of puncture casing is carried out minimally-invasive treatment.
2. in a kind of body as claimed in claim 1 the multiaxis of deep tissue to perforator, it is characterized in that said needle length is 150mm, said puncture casing length is 100mm; The length of said bending section is 30mm; The radius of curvature of said bending section is 5 times of said bending section length, and the angle of the tangent plane of said angular cut and the outer tangent line of said bending section is 20 degree, and the external diameter of said puncture needle is 3mm; Said lumen diameter is 3.3mm; The diameter of said side opening is 3.6mm, and the length of said elastic tongue piece is 3mm, and the angle of the extended line of said elastic tongue piece and the axis of said tube chamber is 30 degree.
3. in a kind of body as claimed in claim 1 the multiaxis of deep tissue to perforator; It is characterized in that said needle length is 50mm, said puncture casing length is 20mm, and the length of said bending section is 5mm; The radius of curvature of said bending section is 10 times of said bending section length; The angle of the tangent plane of said angular cut and the outer tangent line of said bending section is 60 degree, and the external diameter of said puncture needle is 0.2mm, and said lumen diameter is 0.6mm; The diameter of said side opening is 0.6mm, and the length of said elastic tongue piece is 0.6mm.
4. in a kind of body as claimed in claim 1 the multiaxis of deep tissue to perforator, it is characterized in that said needle length is 350mm, said puncture casing length is 300mm; The length of said bending section is 50mm; Said bending section radius of curvature be 2 times of said bending section length, the angle of the tangent plane of said angular cut and the outer tangent line of said bending section is 6 degree, the external diameter of said puncture needle is 5.8mm; Said lumen diameter is 6mm; The diameter of said side opening is 8mm, and the length of said elastic tongue piece is 6mm, and the angle of the extended line of said elastic tongue piece and the axis of said tube chamber is 10 degree.