CN210019564U - Anesthesia needle head for vertebroplasty and surgical instrument - Google Patents

Abstract

The utility model provides an anesthesia syringe needle and surgical instruments for vertebroplasty, it has solved puncture increase patient's misery before the existing percutaneous vertebroplasty, doctor and the more technical problem of patient's X-ray irradiation number of times, it is equipped with the needle file, the needle body, fixed sealing connecting piece, the needle file is equipped with the needle file jack and the mounting hole that are linked together, the inner chamber of fixed sealing connecting piece comprises first level step hole, second level step hole, form the step face between first level step hole and the second level step hole, the afterbody of the needle body is matchingly established in first level step hole, and the annular side of the afterbody of the needle body supports and leans on the step face; an annular mounting groove is formed in one end, close to the step surface, of the first-stage step hole, an O-shaped ring is arranged in the annular mounting groove in a matched mode, the needle tail portion of the needle body is connected with the first-stage step hole of the fixed sealing connecting piece in a sealing mode through the O-shaped ring, the needle tail portion of the needle body is connected with the first-stage step hole and the inner ring of the O-shaped ring in a sliding mode respectively, and the needle can be widely applied to the field.

Description

Anesthesia needle head for vertebroplasty and surgical instrument

Technical Field

The utility model relates to the field of medical equipment, in particular to an anesthesia needle head and surgical equipment for vertebroplasty.

Background

Vertebral compression fracture is the most common complication of osteoporosis patients, and the traditional open surgery treatment has a large number of complications caused by large trauma. Percutaneous vertebroplasty is a minimally invasive spinal surgery technique which aims at increasing the strength and mechanical stability of a pathological vertebral body, preventing collapse, relieving pain and even partially recovering the height of the vertebral body by injecting bone cement into the vertebral body percutaneously through the pedicle of vertebral arch or outside the pedicle of vertebral arch, and clinical application proves that the minimally invasive spinal surgery technique has stable, reliable, rapid and effective treatment effects and few complications.

Before a doctor carries out percutaneous vertebroplasty on a patient, firstly, the bone surface of a diseased centrum part needs to be anesthetized by an anesthetic needle; the present anesthesia needle is of a great variety, for example, the utility model with the authorization notice number of CN201200691Y discloses a lumbar anesthesia needle, which comprises a needle head and a needle tube, wherein the top end of the needle head is fixedly provided with a clamping groove, the front end of the needle tube is fixedly provided with an elastic hanging wing, the structure is simple, the use is convenient, the needle head can be firmly fixed when the lumbar anesthesia is carried out on a patient, and the initiation of medical disputes is avoided. Secondly, a puncture needle is used for puncturing the lesion vertebral body part from the vertebral pedicle, and the position of the lesion vertebral body of the patient needs to be accurately determined; at present, the puncture needle is of various types, for example, the utility model patent with the authorization publication number of CN201642249U discloses a puncture needle for orthopedic surgery, which adopts a rotary clamping device to ensure that a needle core seat and a needle tube seat can not be separated, thereby ensuring the stability of the needle core and the needle tube, being beneficial to the insertion operation of the puncture needle, and when the needle core needs to be withdrawn, the needle core can be withdrawn easily by rotating the needle core seat, the operation is very convenient, and the smooth proceeding of the surgery is ensured. In the anesthesia and puncture process, the percutaneous vertebroplasty lacks the bony signs under open surgery, so that the prior art is mainly deficient in two aspects:

(1) in order to accurately determine the position of a diseased vertebral body of a patient, doctors often need to adjust the needle inserting angle and direction through repeated X-ray irradiation for many times to accurately insert a needle, and during the X-ray irradiation, the needle core seat and the needle tube seat of the puncture needle have large weight and need to be held by hands to prevent the puncture needle from being skewed and deviated. Under the condition of multiple X-ray exposures, the health of a patient is influenced, and due to the professional particularity of doctors, multiple operations are required in one day, so that the health of the doctors is seriously influenced in the past.

(2) Because the needle core seat and the needle tube seat of the puncture needle occupy larger space, the shooting image interference sometimes occurs to cause repeated positioning and puncture, which wastes time and increases risks. The puncture point and the puncture needle direction are adjusted under X-ray monitoring for a plurality of times, thereby prolonging the operation time and increasing the pain of patients.

Disclosure of Invention

The utility model aims at solving the defects of the technology and providing an anesthesia needle head and a surgical instrument for vertebroplasty which can reduce the X-ray irradiation of doctors and patients and reduce the pain of the patients.

Therefore, the utility model provides an anesthesia needle head for vertebroplasty, which is provided with an anesthesia needle head body, wherein the anesthesia needle head body is provided with a needle seat and a needle body, the needle seat is provided with a needle seat insertion hole, the needle body is a hollow tubular structure with openings at two ends, the needle seat is also provided with a mounting hole, and the mounting hole is communicated with the needle seat insertion hole; the anesthetic needle head body is also provided with a fixed sealing connecting piece which is a hollow tubular structure with openings at two ends; the inner cavity of the fixed sealing connecting piece is composed of a first-stage step hole and a second-stage step hole, the diameter of the first-stage step hole is larger than that of the second-stage step hole, a step surface is formed between the first-stage step hole and the second-stage step hole, the needle tail part of the needle body is arranged in the first-stage step hole in a matched mode, and the annular side face of the needle tail part of the needle body abuts against the step surface; an annular mounting groove is formed in one end, close to the step surface, of the first-stage step hole, an O-shaped ring is arranged in the annular mounting groove in a matched mode, the needle tail portion of the needle body is connected with the first-stage step hole of the fixed sealing connecting piece in a sealing mode through the O-shaped ring, the needle tail portion of the needle body is connected with the first-stage step hole and the inner ring of the O-shaped ring in a sliding mode respectively, and when the needle body is pulled outwards, the needle tail portion of the needle body is separated from the O-shaped ring and the first-stage step hole successively until; one end of the fixed sealing connecting piece close to the second-stage step hole is matched and fixedly arranged in the mounting hole; the needle cavity of the needle body is communicated with the second-stage stepped hole, and the second-stage stepped hole is communicated with the needle seat insertion hole.

Preferably, the inner circumferential surface of one end of the first-stage stepped hole, which is far away from the stepped surface, is provided with a plurality of annular grooves which are sequentially arranged side by side to form an expansion cavity.

Preferably, the anesthetic needle body is further provided with a handheld wing, and one end of the fixed sealing connecting piece, which is far away from the second-stage step hole, is located outside the mounting hole and is fixedly connected with the handheld wing.

Preferably, the hand-held wing is of an annular plate-shaped structure, and the fixed sealing connecting piece is fixedly connected in a central hole of the hand-held wing.

Preferably, the needle head portion of the needle body is coated on its outer surface with a developing coating.

Preferably, the needle head part of the needle body is an inclined plane.

Preferably, the outer surface of the needle body is provided with scales.

A surgical instrument for vertebroplasty is provided with a puncture needle and an anesthetic needle head body of any one of the above, wherein the puncture needle is provided with a needle core connected with a needle core seat and a needle tube connected with a needle tube seat, and the outer diameter of the needle body is smaller than the inner aperture of the needle tube.

The utility model has the advantages that: the utility model provides an anesthesia syringe needle and surgical instrument for vertebroplasty, which is provided with an anesthesia syringe needle body, the weight is light, the volume is small, the X-ray irradiation does not need to be held by hands of doctors, the interference of the photographed image can not be generated, the accuracy of the penetration depth and the direction of the syringe needle body is obviously improved, the times of exposing the patient on the X-ray can be reduced, the operation time can be shortened, the risk can be reduced, and the operation success rate can be improved; meanwhile, the number of times of exposure of the doctor on X rays is obviously reduced, the influence of the X rays on the body of the doctor is greatly reduced, and the body health of the doctor is guaranteed.

Drawings

Fig. 1 is a schematic structural view of a front view of the present invention;

FIG. 2 is a schematic view of the configuration of the syringe barrel of FIG. 1 equipped with the syringe;

FIG. 3 is an enlarged schematic view of the cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of an enlarged view of the portion A shown in FIG. 3;

FIG. 5 is a schematic structural view of a top view of the needle hub shown in FIG. 1;

FIG. 6 is a schematic structural view of the bottom view shown in FIG. 5;

FIG. 7 is a schematic structural view of the sectional view A-A shown in FIG. 5;

FIG. 8 is a schematic structural diagram of a top view of the fixed sealing connection shown in FIG. 1;

FIG. 9 is a schematic structural view of the bottom view shown in FIG. 8;

FIG. 10 is a schematic structural view of the front view shown in FIG. 8;

FIG. 11 is a schematic structural view of the sectional view B-B shown in FIG. 8;

FIG. 12 is a schematic top view of the hand wing of FIG. 1;

FIG. 13 is a schematic structural view of the cross-sectional C-C view shown in FIG. 12;

FIG. 14 is a schematic view of an enlarged view of the portion B shown in FIG. 3;

FIG. 15 is a schematic view of the stopper of FIG. 1;

FIG. 16 is a schematic structural view of the cross-sectional view shown in FIG. 15;

FIG. 17 is a schematic structural view of a front view of the plug shown in FIG. 15;

FIG. 18 is a schematic structural view of the top view shown in FIG. 17;

FIG. 19 is a schematic structural view of the cross-sectional D-D view shown in FIG. 18;

fig. 20-27 are schematic structural diagrams of the working principle diagram of the present invention.

The labels in the figure are: 1. the needle comprises a needle base, a needle body, a needle base inserting hole, a needle cylinder, an injection nozzle, a needle cavity, a fixed sealing connecting piece, a first-stage stepped hole, a second-stage stepped hole, a stepped surface, a needle tail portion, a needle head portion, a ring-shaped mounting groove, a ring-shaped O-shaped ring, a ring-shaped groove, a mounting hole, a hand-held wing, a developing coating, a scale, a plug, a pathological change vertebral body portion, a skin, a needle tube seat, a needle tube, a puncture channel, a needle core seat, a needle core, an anesthetic needle body and a bone cement injection area, wherein the needle core is 27 degrees, the anesthetic needle body is 28 degrees, and the bone cement injection area is 29 degrees.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special regulation is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

As shown in fig. 1 to 3, the utility model provides an anesthetic needle for vertebroplasty, which comprises an anesthetic needle body 28, wherein the anesthetic needle body 28 is provided with a needle base 1 and a needle body 2, and the needle base 1 is provided with a needle base insertion hole 3; when in use, the injection nozzle 5 of the commercially available syringe 4 provided with the piston push rod is detachably inserted into the needle seat jack 3, and anesthetic is injected into the anesthetic needle head body 28, the commercially available syringe 4 belongs to the prior art and has various types, for example, the anti-pollution syringe 4 with the authorized notice number of 206508346U. The needle body 2 is the hollow tubular structure of both ends open-ended, and during the use, the needle body 2 pierces the human body, and the anesthetic gets into the human body through the needle chamber 6 of needle body 2 and pierces the position, plays anesthesia effect.

As shown in fig. 1, fig. 3, fig. 4, fig. 8-fig. 11, the anesthetic needle head body 28 of the present invention is further provided with a fixed sealing connector 7, and the fixed sealing connector 7 is a hollow tubular structure with two open ends; the fixed sealing connecting piece 7 is communicated with the needle body 2, and the fixed sealing connecting piece 7 is communicated with the needle base 1. As shown in fig. 3, 4 and 11, an inner cavity of the fixed sealing connector 7 is composed of a first-stage stepped hole 8 and a second-stage stepped hole 9, the diameter of the first-stage stepped hole 8 is larger than that of the second-stage stepped hole 9, a stepped surface 10 is formed between the first-stage stepped hole 8 and the second-stage stepped hole 9, a needle tail portion 11 of the needle body 2 is arranged in the first-stage stepped hole 8 in a matching manner, the annular side surface of the needle tail portion 11 of the needle body 2 abuts against the stepped surface 10, and the stepped surface 10 mainly has two functions, on one hand, after a needle head portion 12 of the needle body 2 penetrates into the human body, the stepped surface 10 abuts against the annular side surface of the needle tail portion 11 of the needle body 2 to apply an acting force to the needle body 2 in the process of continuously penetrating into the human body with force, so that the needle head portion 12 of the needle body; on the other hand, in the process of injecting the anesthetic, the zigzag step surface 10 increases the flow resistance, prevents the anesthetic from seeping out from the joint between the outer wall of the needle body 2 and the inner wall of the fixed sealing connecting piece 7, and has a certain sealing effect. An annular mounting groove 13 is formed in one end, close to the step surface 10, of the first-stage step hole 8, an O-shaped ring 14 is arranged in the annular mounting groove 13 in a matched mode, and the needle tail portion 11 of the needle body 2 is connected with the first-stage step hole 8 of the fixed sealing connecting piece 7 in a sealing mode through the O-shaped ring 14; the O-shaped ring 14 seal and the zigzag step surface 10 seal to generate a synergistic effect, so that the sealing effect is improved, and the anesthetic is effectively prevented from seeping out from the joint of the outer wall of the needle body 2 and the inner wall of the fixed sealing connecting piece 7 in the anesthetic injection process. The needle tail portion 11 of the needle body 2 is respectively connected with the inner ring sliding of the first-stage step hole 8 and the O-shaped ring 14, when the needle body 2 is pulled out through external force, the needle tail portion 11 of the needle body 2 is separated from the O-shaped ring 14 successively, the first-stage step hole 8 is pulled out from the fixed sealing connecting piece 7 completely, the needle body 2 is separated from the fixed sealing connecting piece 7 completely at the moment, the needle body 2 in the O-shaped ring 14 is pulled out, the O-shaped ring 14 is elastically contracted, the needle body 2 cannot be inserted into the O-shaped ring 14 in the fixed sealing connecting piece 7 again after being used, the disease propagation caused by repeated use is avoided, and the body health of a patient is ensured. As the utility model discloses preferred embodiment, the utility model discloses first order step hole 8 is kept away from the inner circumference of the one end of step face 10 and is offered many annular groove 15 that set gradually side by side, forms the inflation cavity, makes and forms labyrinth seal structure between the outer circumference of inner circumference and needle body 2 between annular groove 15 of fixed sealing connecting piece 7 and the adjacent annular groove 15, produces labyrinth effect to the anesthetic through labyrinth seal structure, reaches and hinders sealed purpose of leaking, further improves sealed effect.

As shown in fig. 5-7, the needle holder 1 of the present invention further has a mounting hole 16, and the mounting hole 16 is communicated with the needle holder insertion hole 3. As shown in fig. 3 and 4, one end of the fixed sealing connecting piece 7 close to the second-stage stepped hole 9 is fitted and fixedly installed in the installation hole 16; the needle cavity 6 of the needle body 2 is communicated with the second-stage stepped hole 9, the second-stage stepped hole 9 is communicated with the needle seat jack 3, when the needle is used, the injection nozzle 5 of the commercially available needle cylinder 4 provided with the piston push rod is detachably inserted into the needle seat jack 3, the needle head part 12 of the needle body 2 is punctured into a human body, after reaching the depth of a preset human body part, anesthetic is injected into the anesthetic needle head body 28, the anesthetic enters the needle cavity 6 of the needle body 2 through the second-stage stepped hole 9, flows out of the needle head part 12 of the needle body 2 and finally enters a preset anesthetic area of the human body, and an anesthetic effect is achieved.

As a preferred embodiment of the present invention, as shown in fig. 1, fig. 3, fig. 12, fig. 13, fig. 15 and fig. 16, the anesthetic needle head body 28 of the present invention is further provided with a hand-held wing 17, and one end of the fixed sealing connecting piece 7, which is far away from the second-stage stepped hole 9, is located outside the mounting hole 16 and is fixedly connected with the hand-held wing 17; when the needle body 2 of the anesthesia needle head body 28 is pierced into the pathological vertebral body part of the human body or the needle body 2 is separated from the fixed sealing connecting piece 7, the operation of pinching, lifting and pressing is convenient for doctors, the hand feeling is comfortable, and the operation efficiency is improved. Preferably, the hand-held wing 17 is in an annular plate-shaped structure, and the fixed sealing connecting piece 7 is fixedly connected in a central hole of the hand-held wing 17, so that the holding, pressing and lifting operation of a doctor is further facilitated.

As a preferred embodiment of the present invention, as shown in fig. 1, 3 and 14, the needle head portion 12 of the needle body 2 of the present invention is coated with a developing coating 18 on the outer surface thereof; the development coating 18 is a product available in the prior art and on the market, and is coated on the outer surface of the needle head part 12 of the needle body 2, so that a doctor can conveniently check by X-ray, and the staying position of the needle head part 12 of the needle body 2 can be more accurately judged.

As the preferred embodiment of the utility model, as shown in fig. 3 and 14, the needle head 12 of the needle body 2 of the utility model is an inclined plane, which makes the puncture easier.

As a preferred embodiment of the present invention, as shown in fig. 1, the outer surface of the needle body 2 of the present invention is provided with scales 19, which can measure and monitor the depth of insertion of the needle body 2.

As a preferred embodiment of the present invention, as shown in fig. 15-19, the anesthetic needle head body 28 of the present invention is further provided with a plug 20, after the injection of the anesthetic into the human body is completed, the nozzle 5 of the commercially available syringe 4 is pulled out from the needle holder insertion hole 3, and the needle holder insertion hole 3 is covered with the plug 20 in order to prevent the dust in the air from entering the needle holder insertion hole 3.

The utility model discloses a theory of operation does: the utility model provides an anesthesia syringe needle for vertebroplasty, during the use, the main step is as follows:

(1) as shown in figure 20, firstly, the injection nozzle 5 of the commercially available syringe 4 with the piston push rod is detachably inserted into the needle seat jack 3, and anesthetic is quantitatively extracted, the needle head part 12 of the needle body 2 pierces the skin 22 outside the pathological change centrum part 21 according to a preset angle, and a proper amount of anesthetic is injected to complete local anesthesia of the skin 22, then the needle head part 12 of the needle body 2 pierces the bone surface of the pathological change centrum part 21 through the skin 22, and a proper amount of anesthetic is injected to complete local anesthesia of the bone surface, and the piercing depth can be judged according to the depth of the needle head part 12 of the needle body 2.

(2) As shown in fig. 21, the injection nozzle 5 of the commercially available syringe 4 provided with the plunger rod is pulled out from the needle holder insertion hole 3 of the present invention, and the stopper 20 is inserted into the needle holder insertion hole 3 to cover the opening of the needle holder insertion hole 3.

(3) As shown in fig. 22, the hand-held wing 17 is held and continuously pressed, the needle head 12 of the needle body 2 of the anesthetic needle head body 28 is inserted into the bone cement injection region 29 of the pathological vertebral body part 21 of the human body, in order to accurately determine the insertion depth and direction of the needle body 2 of the anesthetic needle head body 28, a doctor needs to perform multiple times of X-ray irradiation to accurately insert a needle, compared with the prior art that a needle core seat and a needle tube seat of a puncture needle are used during X-ray irradiation, the anesthetic needle head body 28 of the present invention has light weight and small volume, does not need the doctor to hold by hand during X-ray irradiation, does not generate photographic image interference, significantly improves the accuracy of the insertion depth and direction of the needle body 2, reduces the times of exposure of the patient on X-rays, shortens the operation time, reduces risks; meanwhile, the number of times of exposure of the doctor on X rays is obviously reduced, the influence of the X rays on the body of the doctor is greatly reduced, and the body health of the doctor is guaranteed.

(4) As shown in fig. 23, the position of the needle body 2 is kept fixed, and the fixed sealing connector 7 is pulled out together with the needle base 1 and the hand-held wing 17, so that the needle body 2 is completely separated from the fixed sealing connector 7, and only the needle body 2 is left.

(5) As shown in fig. 24, the needle tube 24 with the needle tube seat 23 in the prior art puncture needle is sleeved outside the needle body 2 from top to bottom, and the needle body 2 is sleeved in the needle tube 24 at this time, i.e. the outer diameter of the needle body 2 is smaller than the inner aperture of the needle tube 24; the needle tube 24 is penetrated down through the skin 22 in the axial direction of the needle body 2 until the bottom of the needle tube 24 abuts against the wound of the needle body 2 on the bone surface, the needle tube 24 and the needle body 2 being kept coincident with each other with their central axes in the axial direction. The needle tail 11 of the needle body 2 is preferably exposed out of the needle tube seat 23 to facilitate the extraction of the needle body 2.

(6) As shown in FIG. 25, the needle body 2 is completely pulled out from the diseased vertebral body part 21, and only the needle tube 24 with the needle tube holder 23 is left, and at this time, the puncture channel 25 formed by pulling out the needle body 2 is left below the needle tube 24, and the position of the needle tube 24 with the needle tube holder 23 is kept stationary.

(7) As shown in fig. 26, the core 27 with the core holder 26 of the prior art puncture needle is inserted into the needle tube 24 and combined, the combination of the core 27 and the needle tube 24 is inserted into the bone cement injection region 29 of the lesion vertebral body part 21 of the human body along the insertion path 25, and the insertion depth of the combination of the core 27 and the needle tube 24 can be determined according to the insertion depth of the needle body 2, thereby completing the puncture operation of the puncture needle before injecting the bone cement. In current operation process, anesthesia and puncture always respectively leave the wound of a poroid at least on the bone face of patient pathological change centrum position 21, just also be two wounds, have increased patient's misery, have prolonged the postoperative convalescence, compare with this, the utility model discloses anesthesia and puncture pierce from same poroid wound on the bone face of patient pathological change centrum position 21 to alleviateed patient's misery, shortened the postoperative convalescence.

It should be noted that, each component of the anesthetic needle head body 28 of the present invention is medical grade, which satisfies the requirement of human body hygiene. The anesthetic is a medical anesthetic, and belongs to the prior art. The prior art puncture needle can also be a patent product disclosed in CN201384543Y, CN201384543Y, CN201879791 and CN 108938058.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims (8)

1. An anesthetic needle head for vertebroplasty is provided with an anesthetic needle head body, wherein the anesthetic needle head body is provided with a needle seat and a needle body, the needle seat is provided with a needle seat jack, and the needle body is a hollow tubular structure with openings at two ends; the anesthetic needle head body is also provided with a fixed sealing connecting piece which is a hollow tubular structure with two open ends; the inner cavity of the fixed sealing connecting piece is composed of a first-stage step hole and a second-stage step hole, the diameter of the first-stage step hole is larger than that of the second-stage step hole, a step surface is formed between the first-stage step hole and the second-stage step hole, the needle tail part of the needle body is arranged in the first-stage step hole in a matched mode, and the annular side face of the needle tail part of the needle body abuts against the step surface; an annular mounting groove is formed in one end, close to the step surface, of the first-stage step hole, an O-shaped ring is arranged in the annular mounting groove in a matched mode, the needle tail portion of the needle body is connected with the fixed sealing connecting piece in a sealing mode through the O-shaped ring, the needle tail portion of the needle body is connected with the first-stage step hole and the inner ring of the O-shaped ring in a sliding mode respectively, and when the needle body is pulled outwards, the needle tail portion of the needle body is separated from the O-shaped ring and the first-stage step hole successively until the needle tail portion is completely pulled out of the fixed sealing connecting piece; one end of the fixed sealing connecting piece close to the second-stage stepped hole is matched and fixedly arranged in the mounting hole; the needle cavity of the needle body is communicated with the second-stage stepped hole, and the second-stage stepped hole is communicated with the needle seat insertion hole.

2. The anesthetic needle for vertebroplasty according to claim 1, wherein a plurality of annular grooves are formed in the inner circumferential surface of the first-stage stepped hole at the end away from the stepped surface, and the annular grooves are sequentially arranged side by side to form an expansion cavity.

3. The anesthetic needle for vertebroplasty according to claim 1, wherein the anesthetic needle body further comprises a hand-held wing, and an end of the fixed sealing connector, which is away from the second-stage stepped hole, is located outside the mounting hole and is fixedly connected to the hand-held wing.

4. The anesthesia needle for vertebroplasty according to claim 3, wherein the hand-held wing has a ring-shaped plate structure, and the fixed sealing connector is fixedly connected in the central hole of the hand-held wing.

5. An anaesthetic needle for vertebroplasty according to claim 1 wherein the needle body has a visualization coating on the outer surface of the needle head.

6. An anaesthetic needle for vertebroplasty according to claim 5 wherein the tip of the needle body is beveled.

7. An anaesthetic needle for vertebroplasty according to claim 1, wherein the outer surface of the needle body is graduated.

8. A surgical instrument for vertebroplasty, characterized in that it is provided with a puncture needle, an anesthetic needle head body according to any one of claims 1 to 7, said puncture needle being provided with a core connected to a core holder, a needle tube connected to a needle tube holder, the outer diameter of said needle body being smaller than the inner diameter of said needle tube.

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