CN210056172U - Puncture reaming needle - Google Patents

Abstract

The utility model discloses a puncture reaming needle, the installation structure comprises a sleeve, puncture needle pistil and reaming needle pistil, puncture needle pistil is equipped with the inclined plane point end of erroneous tendency one side, the reaming needle pistil is equipped with the inclined plane front end of erroneous tendency one side, the tip round blunt of inclined plane front end, the sleeve pipe includes sleeve pipe handle, snap ring and needle tubing, sleeve pipe handle is equipped with fluting and arch, peg graft when sleeve pipe handle in the needle tubing, protruding conflict with the needle tubing and make the sleeve pipe handle of fluting both sides warp in order to hold the needle tubing, the sleeve pipe handle is located in order to prevent that needle tubing and sleeve pipe handle from droing to the snap ring cover, puncture needle pistil or reaming needle pistil are pegged graft and are formed pjncture needle or reaming needle in the sleeve pipe, only need replace puncture needle pistil into reaming needle pistil during the use, just, convenient to use, it is swift.

Description

Puncture reaming needle

Technical Field

The utility model belongs to the technical field of medical instrument and specifically relates to a puncture reaming needle is related to.

Background

The percutaneous pedicle puncture screw-placing technology is widely used for percutaneous fixation of thoracolumbar fracture, tumor, infection and degenerative disease, and the operation is to use a percutaneous puncture needle to establish a soft tissue and a bone channel and place a guide pin under the perspective monitoring, and tap and place a screw along the guide pin. The needle point of the percutaneous puncture needle used in clinic is longer, the middle is conical or pyramidal, the risk of puncturing the pedicle wall of the vertebral arch is high, the nail path is difficult to change direction, the perspective time in the puncture process is long, and the radiation damage is large.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a puncture reaming needle which can avoid the risk of breaking the wall, is easy to change the direction of the nail path and reduce the radiation damage in the operation.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a puncture reaming needle, includes sleeve pipe, puncture needle pistil and reaming needle pistil, puncture needle pistil is equipped with the inclined plane point-end of partial deviation one side, reaming needle pistil is equipped with the inclined plane front end of partial deviation one side, the tip round blunt of inclined plane front end, the sleeve pipe includes sleeve pipe handle, snap ring and needle tubing, sleeve pipe handle is equipped with fluting and arch, works as the needle tubing peg graft in during the sleeve pipe handle, protruding with the needle tubing is contradicted and is made the sleeve pipe handle of fluting both sides warp in order to hold the needle tubing, the snap ring cover is located sleeve pipe handle is in order to prevent the needle tubing with sleeve pipe handle drops, puncture needle pistil or reaming needle pistil peg graft in the sleeve pipe forms pjncture needle or reaming needle.

Further, the sleeve pipe handle includes portion of gripping and pipe, the pipe is followed the portion of gripping extends and goes out, the inside draw-in groove that is equipped with of pipe, the needle tubing includes the card platform, the card platform with the draw-in groove cooperation.

Furthermore, the slots and the protrusions are arranged on the circular tube, and the number of the slots and the number of the protrusions are two respectively.

Furthermore, the holding part is provided with a positioning groove, the reaming needle core is provided with a reaming positioning boss, and the reaming positioning boss is matched with the positioning groove when the reaming needle core is inserted into the sleeve.

Furthermore, the positioning groove is in a convex shape.

Furthermore, the holding part is provided with a positioning groove, the puncture needle core is provided with a puncture positioning boss, and when the puncture needle core is inserted into the sleeve, the puncture positioning boss is matched with the positioning groove.

Further, the needle tube is provided with an inner hole, the sleeve pipe handle is of a hollow structure and is communicated with the inner hole, the tail end of the needle tube is provided with a tube tip, and the tube tip is the front end of an inclined plane tip deviated to one side.

Further, the end of the front end of the bevel tip is round and blunt.

Compared with the prior art, the utility model discloses puncture reaming needle still includes puncture needle pistil and reaming needle pistil, puncture needle pistil is equipped with the inclined plane tip of partial deviation one side, reaming needle pistil is equipped with the inclined plane front end of partial deviation one side, the tip round blunt of inclined plane front end, peg graft when the needle tubing in sleeve pipe handle, the protruding sleeve pipe handle that makes the fluting both sides of contradicting with the needle tubing warp in order to hold the needle tubing, sleeve pipe handle is located in order to prevent that the needle tubing from droing with sleeve pipe handle to the snap ring cover, puncture needle pistil or reaming needle pistil are pegged graft and are formed pjncture needle or reaming needle in the sleeve pipe, only need replace into reaming needle pistil with puncture needle pistil during the use, just can realize that the pjncture needle converts into the reaming needle, high durability.

Drawings

FIG. 1 is an exploded view of the puncture reaming needle of the present invention;

FIG. 2 is an exploded view of the cannula of the piercing reamer needle of FIG. 1;

FIG. 3 is a partial structural schematic view of the bushing of FIG. 2;

FIG. 4 is a partial structural cross-sectional view of the bushing of FIG. 3;

FIG. 5 is a perspective view of a broach core of the piercing broach needle of FIG. 1;

FIG. 6 is a perspective view of the puncture core of the puncture needle of FIG. 1;

FIG. 7 is a perspective view of the assembled reamer needle of FIG. 1;

FIG. 8 is an enlarged view of FIG. 7 at broach needle A;

FIG. 9 is a perspective view of the piercing needle formed by the assembly of the piercing reamer needle of FIG. 1;

fig. 10 is an enlarged view of the puncture needle B of fig. 9.

In the figure: 10. a sleeve; 11. a cannula handle; 110. a grip portion; 111. a positioning groove; 112. a circular tube; 113. grooving; 114. a protrusion; 12. a snap ring; 13. a needle tube; 130. an inner bore; 131. a tube tip; 132. clamping a platform; 20. reaming the needle core; 21. a reaming handle; 210. reaming and positioning the boss; 22. a first needle core; 220. a beveled front end; 30. puncture needle core; 31. a puncture handle; 310. puncturing a positioning boss; 32. a second needle core; 320. a beveled tip; 200. a hole expanding needle; 300. a puncture needle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the utility model relates to a puncture reaming needle, which comprises a cannula 10, a reaming core 20 and a puncture core 30.

With continued reference to fig. 2-4, the cannula 10 includes a cannula handle 11, a snap ring 12, and a needle cannula 13. The cannula handle 11 is of a hollow construction. The cannula handle 11 includes a grip portion 110, a barrel 112. A barrel 112 extends from the grip portion 110. The holding portion 110 has a positioning groove 111, and the positioning groove 111 is convex. The circular tube 112 has two slots 113 and two protrusions 114. The inside of the circular tube 112 is provided with a clamping groove. The snap ring 12 is cylindrical and tubular. The inner diameter of the snap ring 12 is slightly larger than the outer diameter of the circular tube 112. The needle tube 13 is provided with an inner hole 130, the end part of the needle tube 13 is provided with a tube tip 131, the tube tip 131 is a bevel tip front end which is deviated to one side, and the end part of the bevel tip front end is round and blunt. The other end of the needle tube 13 is provided with a clamping platform 132.

When the cannula 10 is assembled, the end of the needle tube 13 is inserted into the tube 112 of the cannula handle 11, and during the insertion process, the protrusion 114 abuts against the needle tube 13, so that the tubes 112 on both sides of the slot 113 are deformed, and the needle tube 13 is accommodated conveniently. The locking boss 132 of the syringe 13 engages the locking slot of the barrel 112. The snap ring 12 is sleeved on the circular tube 112 of the cannula handle 11 to prevent the needle tube 13 from falling off from the cannula handle 11. The internal bore 130 of the needle cannula 13 is now in communication with the interior of the cannula handle 11.

With continued reference to fig. 5, the needle core 20 includes a handle 21 and a first needle core 22. The first needle core 22 is fixed to the expanding handle 21. The reaming handle 21 is provided with a reaming positioning boss 210, and the shape of the reaming positioning boss 210 corresponds to the shape of the positioning groove 111 and is convex. The end of the first needle core 22 is provided with a beveled front end 220, and the end of the beveled front end 220 is rounded.

With continued reference to FIG. 6, the piercing needle core 30 includes a piercing handle 31 and a second needle core 32. The second needle core 32 is fixed to the puncture handle 31. The puncture handle 31 is provided with a puncture positioning boss 310, and the shape of the puncture positioning boss 310 corresponds to the shape of the positioning groove 111 and is convex. The end of the second core 32 is provided with a beveled tip 320.

Referring to fig. 7 to 10, when the puncture reaming needle is used, the puncture needle core 30 is inserted into the sleeve 10 to form a puncture needle 300 with a tilted needle tip biased to one side, the puncture needle 300 is operated to penetrate through soft tissue, a bone needle point opening, a bone passage redirection and the like, when the puncture needle 300 reaches a pedicle eye shadow, the reaming needle core 20 is replaced with the puncture needle core 30 to form a reaming needle 200 with a tilted front end 220 biased to one side, which is similar to pedicle reaming in an open surgery, so that the pedicle wall of the vertebral arch is prevented from being punctured, the perspective is reduced, and the surgery time is shortened. The percutaneous pedicle of vertebral arch puncture and the reaming are realized, so that the subsequent percutaneous nail fixation is realized.

Through the design, only need during the use to replace into reaming needle pistil 20 with puncture needle pistil 30, just can realize that pjncture needle 300 converts into reaming needle 200, convenient to use, swift can avoid broken wall risk, easily nail way change to, reduce the radiation damage in the art.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (8)

1. The utility model provides a puncture reaming needle, includes the sleeve pipe, its characterized in that: puncture reaming needle still includes puncture needle pistil and reaming needle pistil, puncture needle pistil is equipped with the inclined plane point end of erroneous tendency one side, reaming needle pistil is equipped with the inclined plane front end of erroneous tendency one side, the tip round of inclined plane front end is blunt, the sleeve pipe includes sleeve pipe handle, snap ring and needle tubing, the sleeve pipe handle is equipped with fluting and arch, works as the needle tubing peg graft in during the sleeve pipe handle, protruding with the needle tubing is contradicted and is made the sleeve pipe handle of fluting both sides warp in order to hold the needle tubing, the snap ring cover is located the sleeve pipe handle is in order to prevent the needle tubing with the sleeve pipe handle drops, puncture needle pistil or reaming needle pistil peg graft in the sleeve pipe forms pjncture needle or reaming needle.

2. The puncture reaming needle according to claim 1, characterized in that: the sleeve pipe handle includes portion of gripping and pipe, the pipe is followed the portion of gripping extends out, the inside draw-in groove that is equipped with of pipe, the needle tubing includes the card platform, the card platform with the draw-in groove cooperation.

3. The puncture reaming needle according to claim 2, characterized in that: the grooving and the protrusion are arranged on the circular tube, and the number of the grooving and the number of the protrusion are two respectively.

4. The puncture reaming needle according to claim 2, characterized in that: the holding part is provided with a positioning groove, the reaming needle core is provided with a reaming positioning boss, and the reaming positioning boss is matched with the positioning groove when the reaming needle core is inserted into the sleeve.

5. The piercing reamer needle of claim 4, wherein: the positioning groove is in a convex shape.

6. The puncture reaming needle according to claim 2, characterized in that: the holding part is provided with a positioning groove, the puncture needle core is provided with a puncture positioning boss, and when the puncture needle core is inserted into the sleeve, the puncture positioning boss is matched with the positioning groove.

7. The puncture reaming needle according to claim 1, characterized in that: the needle tube is provided with an inner hole, the sleeve pipe handle is of a hollow structure and is communicated with the inner hole, the tail end of the needle tube is provided with a tube tip, and the tube tip is the front end of an inclined plane tip deviated to one side.

8. The piercing reamer needle of claim 4, wherein: the end part of the front end of the bevel point is round and blunt.

Images