CN206138178U - Compatible pjncture needle of magnetic resonance - Google Patents

Abstract

The utility model provides a compatible pjncture needle of magnetic resonance, includes: outer needle pipe, outer needle handle, inner syringe, interior needle handle, outer needle pipe hand -hole, outer needle intraduct hand -hole, inner syringe entry, cuboid breach, cuboid salient, syringe needle sharpen face, arc tangent plane, the outer needle pipe is connected with the outer needle handle, inner syringe is connected with interior needle handle, the outer needle handle is cavity, the outer needle handle is equipped with outer needle pipe hand -hole with continuous of outer needle pipe viscose, the diameter of outer needle pipe hand -hole is greater than the diameter of outer needle pipe, the inside of outer needle handle is equipped with outer needle intraduct hand -hole, the diameter of outer needle intraduct hand -hole is greater than inner syringe's diameter, the syringe needle sharpen face of outer needle pipe forms contained angle 20 with the axial lead of outer needle pipe, an arc tangent plane is respectively ground on the back needle point both sides of the syringe needle sharpen face of outer needle pipe, the outer needle pipe adopts pure titanium material, inner syringe adopts memorability titanium nickel alloy material, the utility model discloses effectively reduce the pseudo - shadow of metal of magnetic resonance, during the puncture, alleviateed patient's wound, reduced the emergence probability of complication.

Description

A kind of puncture needle of magnetic resonance compatible

Technical field

This utility model belongs to medical instruments field, and in particular to a kind of puncture needle of magnetic resonance compatible.

Background technology

Puncture needle is most basic interventional medical device, is mainly used in Minimally Invasive Surgery, and it combines other armarium It is used in combination, can be used to treat puncture of lumbar disc, arthrocentesiS, the puncture of myalgia point, drug injection, can goes directly patient's pain Point, eliminates patient pain.

Traditional puncture needle can be only applied under CT and ultrasound environments, it is impossible under for magnetic resonance environment, in the last few years, magnetic Resonance image-forming guiding intervention be one of maximally effective diagnostic means of modern interventional therapy Chinese medicine iconography, its have to human body without Ionizing radiation, image resolution ratio are high, the treatment advantage such as precisely, and existing puncture needle major part is all made of stainless steel material, Larger magnetic field force and torque can be subject under magnetic resonance environment, larger artifact can be also produced, diagnosis is affected, to patient not Safety, it is impossible to use, and the most outer needle tubing of existing puncture needle and inner needle tube syringe needle grind on one face at an angle, It is larger to patient trauma in piercing process, it is not easy to puncture.

Utility model content

The technical problem that this utility model is solved is to provide a kind of puncture needle of magnetic resonance compatible, to solve the above-mentioned back of the body The problem proposed in scape technology.

The technical problem that this utility model is solved employs the following technical solutions to realize, a kind of puncture of magnetic resonance compatible Pin, including：Outer needle tubing, outer pin handle, inner needle tube, interior pin handle, outer needle tubing enter hole, enter inside outer needle tubing hole, inner needle tube entrance, Cuboid gap, cuboid protrusion, syringe needle sharpening face, arc tangent plane, the outer needle tubing is connected with outer pin handle, inner needle tube and interior pin Handle connects, and outer pin handle is hollow, and outer pin handle is provided with outer needle tubing and enters hole with outer needle tubing viscose glue connecting place, and outer needle tubing enters hole With diameter greater than the diameter of outer needle tubing, the inside of outer pin handle is provided with inside outer needle tubing and enters hole, and the diameter that hole is entered inside outer needle tubing is big In the diameter of inner needle tube.

The inner needle tube and outer pin handle viscose glue connecting place are provided with inner needle tube and enter hole, inner needle tube enter hole with diameter greater than interior pin The diameter of pipe.

The outer pin handle surfaces are provided with cuboid gap, and the surface of interior pin handle is provided with cuboid protrusion, and cuboid lacks Mouth is projected with cuboid and mutually coincide.

The outer needle tubing is hollow, and inner needle tube is solid, and, more than the diameter of inner needle tube, inner needle tube is in outer pin for outer needle tubing internal diameter Guan Zhongke freely comes in and goes out.

The outer needle tubing length be 105MM -155MM, external diameter be 0.81MM -2.11MM, internal diameter be 0.51MM - 1.60MM。

The inner needle tube length is 126MM -176`MM, a diameter of 0.41MM -1.50MM.

The syringe needle sharpening face of the outer needle tubing forms 20 ° of angle, the syringe needle sharpening face of outer needle tubing with the axial line of outer needle tubing The each one arc tangent plane of mill in back side needle point both sides.

The syringe needle sharpening face of the inner needle tube forms 20 ° of angle with the axial line of inner needle tube.

The outer surface of the outer needle tubing is provided with the circular closure ring scale that width is 0.5MM, on the basis of syringe needle, every 10MM makes a call to a ring, and every 50MM two rings are made a call to.

The outer needle tubing adopts pure titanium material, inner needle tube to adopt Memorability titanium nickel alloy material.

A kind of puncture needle of magnetic resonance compatible of this utility model, has effectively cut down the metal artifacts in magnetic resonance so that Magnetic resonance image (MRI) is very clear, is easy to the sharpening face of diagnosis, outer needle tubing and inner needle tube respectively at outer needle tubing and inner needle tube Axial line forms 20 ° of angle, and the sharpening face needle point back side both sides of outer needle tubing are respectively ground an arc tangent plane, are easy to doctor to puncture, mitigate Wound to patient, reduces the probability of happening of complication.

Figure of description:

Fig. 1 is a kind of puncture needle overall structure diagram of magnetic resonance compatible；

Fig. 2 is a kind of outer pin handle arrangement schematic diagram of puncture needle of magnetic resonance compatible；

Fig. 3 is pin handle arrangement schematic diagram in a kind of puncture needle of magnetic resonance compatible；

Fig. 4 is a kind of outer needle tubing structural representation of puncture needle of magnetic resonance compatible；

Fig. 5 is a kind of outer needle tubing syringe needle schematic diagram of puncture needle of magnetic resonance compatible；

Fig. 6 is a kind of puncture needle inner needle tube structural representation of magnetic resonance compatible.

Specific embodiment：

Embodiment is given below to be specifically described this utility model, it is necessary to it is pointed out here that be following enforcement Example is served only for being further described this utility model, it is impossible to be interpreted as the restriction to this utility model protection domain, the neck The person skilled in the art in domain according to some nonessential modifications and adaptations that this utility model content is made to this utility model still Belong to protection domain of the present utility model.

As shown in Fig. 1 ~ 6, a kind of puncture needle of magnetic resonance compatible, including：It is outer needle tubing 1, outer pin handle 2, inner needle tube 3, interior Pin handle 4, outer needle tubing enter hole 5, enters hole 6, inner needle tube entrance 7, cuboid gap 8, cuboid inside outer needle tubing projects 9, syringe needle Sharpening face 10, arc tangent plane 11, the outer needle tubing 1 is connected with outer pin handle 2, and inner needle tube 3 is connected with interior pin handle 4, outer pin handle 2 For hollow, outer pin handle 2 and the viscose glue connecting place of outer needle tubing 1 are provided with outer needle tubing and enter hole 5, outer needle tubing enter hole 5 with diameter greater than outer pin The diameter of pipe 1, the inside of outer pin handle 2 is provided with inside outer needle tubing and enters hole 6, enter inside outer needle tubing hole 6 with diameter greater than inner needle tube 3 Diameter, inner needle tube 3 and the viscose glue connecting place of outer pin handle 2 be provided with inner needle tube and enter hole 7, inner needle tube enter hole 7 with diameter greater than interior pin The diameter of pipe 3, the outer surface of pin handle 2 is provided with cuboid gap 8, and the surface of interior pin handle 4 is provided with cuboid and projects 9, cuboid Breach 8 projects 9 and mutually coincide with cuboid.

The outer needle tubing 1 is hollow, and inner needle tube 3 is solid, and the internal diameter of outer needle tubing 1 is more than the diameter of inner needle tube 3, inner needle tube 3 Can freely come in and go out in outer needle tubing 1, prevent piercing process tissue from blocking outer needle tubing.

The length of outer needle tubing 1 is 105MM ~ 155MM, and external diameter is 0.81MM ~ 2.11MM, and internal diameter is 0.51MM ~ 1.60MM.

The length of the inner needle tube 3 is 126MM ~ 176`MM, a diameter of 0.41MM ~ 1.50MM`.

The syringe needle sharpening face 10 of the outer needle tubing 1 forms 20 ° of angle, the syringe needle mill of outer needle tubing 1 with the axial line of outer needle tubing 1 An arc tangent plane 11 is respectively ground on the back side needle point both sides in sharp face 10, reduces resistance when puncturing, and reduces the wound to patient.

The syringe needle sharpening face 10 of the inner needle tube 3 forms 20 ° of angle with the axial line of inner needle tube 3.

The outer surface of the outer needle tubing 1 is provided with the circular closure ring scale that width is 0.5MM, on the basis of syringe needle, every 10MM makes a call to a ring, and every 50MM two rings are made a call to, and is easy to doctor to observe and calculates depth of needle.

The outer needle tubing 1 adopts pure titanium material, inner needle tube 3 to adopt Memorability titanium nickel alloy material, the artifact under magnetic resonance It is minimum, it is negligible, on diagnosis without impact.

Ultimate principle of the present utility model and principal character has been shown and described above.The technical staff of the industry should Solution, this utility model is not restricted to the described embodiments, and this practicality is new for simply illustrating described in above-described embodiment and description The principle of type, on the premise of without departing from this utility model spirit and scope, this utility model also has various changes and modifications, These changes and improvements are both fallen within the range of claimed this utility model.Claimed scope of the present utility model is by appended Claims and its equivalent thereof.

Claims (10)

1. a kind of puncture needle of magnetic resonance compatible, it is characterised in that：Including：Outer needle tubing, outer pin handle, inner needle tube, interior pin handle, Outer needle tubing enters hole, enters hole, inner needle tube entrance, cuboid gap, cuboid protrusion, syringe needle sharpening face, arc tangent plane inside outer needle tubing, The outer needle tubing is connected with outer pin handle, and inner needle tube is connected with interior pin handle, outer pin handle for hollow, outer pin handle and outer needle tubing Viscose glue connecting place is provided with outer needle tubing and enters hole, and outer needle tubing enters the diameter with diameter greater than outer needle tubing in hole, and the inside of outer pin handle is provided with Enter hole inside outer needle tubing, the diameter with diameter greater than inner needle tube in hole is entered inside outer needle tubing.

2. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The inner needle tube and outer pin handss Handle viscose glue connecting place is provided with inner needle tube and enters hole, and inner needle tube enters the diameter with diameter greater than inner needle tube in hole.

3. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The outer pin handle surfaces set The surface for having cuboid gap, interior pin handle is provided with cuboid protrusion, and cuboid gap is projected with cuboid and mutually coincide.

4. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The outer needle tubing for hollow, Inner needle tube is solid, and outer needle tubing internal diameter is more than the diameter of inner needle tube, and inner needle tube can freely come in and go out in outer needle tubing.

5. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The outer needle tubing length is 105MM -155MM, external diameter is 0.81MM -2.11MM, and internal diameter is 0.51MM -1.60MM.

6. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The inner needle tube length is 126MM -176`MM, a diameter of 0.41MM -1.50MM.

7. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The syringe needle mill of the outer needle tubing Sharp face forms 20 ° of angle with the axial line of outer needle tubing, and respectively one arc of mill is cut on the back side needle point both sides in the syringe needle sharpening face of outer needle tubing Face.

8. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The syringe needle mill of the inner needle tube Sharp face forms 20 ° of angle with the axial line of inner needle tube.

9. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The outer surface of the outer needle tubing The circular closure ring scale that width is 0.5MM is provided with, on the basis of syringe needle, every 10MM a ring is made a call to, every 50MM two rings are made a call to.

10. the puncture needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The outer needle tubing is using pure Titanium material, inner needle tube adopts Memorability titanium nickel alloy material.