CN210472252U - Error-implantation-preventing nail spine vertebral pedicle route-exploring needle - Google Patents

Abstract

The utility model provides a prevent mistake and plant nail backbone pedicle of vertebral arch and visit way needle has solved current backbone pedicle of vertebral arch and has visited the way needle and break through the cortex lycii easily, inwards get into the spinal canal and damage spinal cord or nerve root, outwards break through vertebral body damage peripheral blood vessel, internal organs etc. have the problem of very big risk. The utility model discloses a visit highway section and operation section, visit the highway section and be provided with the bulb for taper and pointed end, the other end of visiting the highway section with the operation section is connected, visit the highway section including the restriction visit the road section and get into the limit dark section of centrum degree of depth, the one end of limit dark section sets up the bulb, the other end of limit dark section is provided with spacing arch, the operation section includes non-slip section and handle. The utility model has the advantages of accurate opening, effective prevention of the bone around the pedicle of vertebral arch from being worn out so as to ensure that spinal nerves and blood vessels are not damaged, and the like.

Description

Error-implantation-preventing nail spine vertebral pedicle route-exploring needle

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to prevent mistake and plant nail backbone pedicle of vertebral arch way probe for open a way of pedicle of vertebral arch passageway before the pedicle of vertebral arch screw is implanted to bare-handed in the clinical operation of spinal surgery.

Background

In clinical medicine, patients suffering from spinal trauma, degeneration, deformity, tuberculosis and tumor are frequently encountered, the medical problems are generally treated by internal fixation surgery, and the internal fixation of the pedicle screws is gradually and widely applied in clinic after continuous development and improvement. Accurate placement of pedicle screws in clinical procedures is the key and basis for the success of internal fixation procedures.

The common implantation of spinal pedicle screws is divided into: manual nail placement, electric nail placement, navigation nail placement and continuous perspective nail placement.

And (3) putting the nail by bare hands: the advantages are that: the method has low price, can be repeatedly applied, has the accuracy rate of about 90 percent, and is the method which is most applied to the spine surgery at present; the disadvantages are as follows: the operator needs to have good hand feeling and a misplacement rate of up to 10 percent, and the risk of paraplegia and death caused by spinal cord, nerve and great vessel injury of the patient with hand loss in the operation is high.

Electric nail placing: the advantages are that: the speed is high, and the angle is easy to adjust; the disadvantages are as follows: the operator is required to have good hand feeling and still has a high misplacement rate, and the spinal cord, nerves and great vessels of the patient are damaged by hand loss in the operation to cause the risk of paraplegia and death.

Continuously perspective underlying nail placement: the advantages are that: the accuracy is up to 98-99%, and the speed is moderate; the disadvantages are as follows: the continuous fluoroscopy causes great damage to the patient and the operator.

And (5) navigation and nail placement: the advantages are that: the accuracy is up to 98-99%; the disadvantages are as follows: the cost is about 300-900 ten thousand, and the operation time is longer.

For the above several nail placing modes, the manual nail placing is still the mainstream mode adopted at present, and before the pedicle screw is placed by the manual, in order to ensure the accuracy of the placement, an opening instrument is generally adopted to explore the path, and then the pedicle screw is placed, and due to the sharp tip and the large force, the cortex lycii is easy to break through, the cortex lycii enters the vertebral canal inwards to damage the spinal cord or nerve roots, the vertebral body outwards breaks through peripheral blood vessels, visceral organs and the like to cause serious complications, if the nail path is adjusted repeatedly, the bone defect of the nail path is easy to cause, and the placement and the firmness of the pedicle screw are directly influenced.

Therefore, there is a need for an improved spinal pedicle access needle.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the existing spinal pedicle route probing needle is easy to break through cortical bone, enters the vertebral canal inwards to injure the spinal cord or nerve roots, breaks through peripheral blood vessels, visceral organs and the like of the vertebral body outwards, and has great risk.

The utility model provides a prevent mistake implantation nail backbone pedicle of vertebral arch way probe needle of solving above-mentioned technical problem.

The utility model discloses a following technical scheme realizes:

prevent mistake and plant nail backbone pedicle of vertebral arch way probe, including visiting highway section and operation section, visit the highway section for the taper and the pointed end is provided with the bulb, visit the other end of highway section with the operation section is connected, visit the highway section including the restriction visit the highway section gets into the limit for depth section of centrum degree, the one end of limit for depth section sets up the bulb, the other end of limit for depth section is provided with spacing arch.

The utility model discloses be provided with the bulb and set up the limit for depth section at exploring way section, can prevent that it from wearing out pedicle of vertebral arch sclerotin all around to guarantee that it does not harm spinal cord, nerve and blood vessel.

The utility model discloses preferred prevent mistake and plant nail backbone pedicle of vertebral arch and visit road needle, the operation section include anti-skidding section and with anti-skidding section integrated into one piece's handle, anti-skidding section is close to visit the highway section, anti-skidding section setting can improve the operator and feel, prevents the hand loss in the art.

The utility model discloses the preferred mistake of preventing is planted and is followed closely backbone pedicle of vertebral arch and is visited the way needle, be provided with the scale on the limit dark section, the degree of depth that can insert the pedicle of vertebral arch like this quantitatively.

The utility model discloses preferably prevent mistake and plant nail backbone pedicle of vertebral arch and visit the way needle, the length of limit for depth section is 4cm, and this length is confirmed according to patient's skeleton size.

The utility model discloses preferably prevent mistake implantation nail backbone pedicle of vertebral arch way probe, antiskid section surface be provided with operation section axial nonparallel nick can increase the hand of operation person like this and the frictional force of operation section, improves the operation person and feels, prevents the hand of losing one's hand in the art.

The utility model discloses the preferred mistake of preventing is planted and is followed nail backbone pedicle of vertebral arch and visit the way needle, the operation section is followed and is close to visit the highway section to keeping away from the direction of visiting the highway section is the taper of horizontal size crescent.

The utility model discloses the preferred length of preventing mistake implantation nail backbone pedicle of vertebral arch and exploring the way needle, the antiskid section is 12cm, the length of handle is 4cm, when the operator adopts this exploring way needle to open a way, explores the way section and gets into the human body, and the antiskid section is held about the operator, and the handle is held to the right hand and is exerted pressure inwards, controls the hand cooperation and explores the adjustment of highway section direction, and 4 cm's handle does benefit to the operator and operates, and the antiskid section has certain hindrance effect to the right hand, prevents the slip hands under the right hand.

The utility model discloses following beneficial effect has:

1. the utility model discloses the design of the bulb of visiting the highway section prevents to wear out pedicle of vertebral arch sclerotin all around in order to guarantee not to damage spinal cord nerve and blood vessel.

2. The utility model discloses the antiskid design of operation section improves art person and feels, prevents to lose the hand in the art.

3. The utility model discloses antiskid section and handle cooperation for the operation is felt, conveniently adjusts and wears accurate way probe.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of the present invention.

Reference numbers and corresponding part names in the drawings:

1-exploring section, 2-operating section, 3-bulb, 4-limiting bulge, 5-anti-slip section, 6-handle and 7-scale.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

As shown in fig. 1, the error implantation prevention nail spine pedicle of vertebral arch path probing needle comprises a probing section 1 and an operation section 2, wherein the probing section 1 is conical and is provided with a ball head 3 at the tip, the other end of the probing section 1 is connected with the operation section 2, the probing section 1 comprises a depth limiting section for limiting the depth of the probing section 1 entering a vertebral body, the ball head 3 is arranged at one end of the depth limiting section, and a limiting bulge 4 is arranged at the other end of the depth limiting section.

The utility model discloses be provided with bulb 3 and set up the limit for depth section at exploring way section 1, can prevent that it from wearing out pedicle of vertebral arch sclerotin all around to guarantee that it does not harm spinal cord, nerve and blood vessel.

The cone is conical.

The diameter of the ball head 3 of the exploration road section 1 is 1-1.5mm, the diameter of the other end of the exploration road section 1 is 2.5-3mm, and the diameter of the limiting bulge 4 is 5-6 mm.

Operation section 2 includes antiskid section 5 and handle 6 with 5 integrated into one piece of antiskid section, antiskid section 5 is close to visit highway section 1, antiskid section 5 sets up and to improve the operator and feel, prevents the intraoperative hand loss.

The depth limiting section is provided with a scale 7, so that the depth of the pedicle can be quantitatively inserted.

The length of the depth limiting section is 4cm, and the length is determined according to the bone size of a patient.

The surface of the anti-slip section 5 is provided with notches which are not parallel to the axial direction of the operation section 2, so that the friction force between the hand of an operator and the operation section 2 can be increased, the hand feeling of the operator is improved, and the hand loss in the operation is prevented.

The operation section 2 is in a conical shape with the transverse dimension gradually increasing along the direction from the approach of the detection section 1 to the far away from the detection section 1.

The length of the antiskid section 5 is 12cm, the length of the handle 6 is 4cm, and the total length of the probe is about 24 cm.

The specific operation mode is as follows: when an operator adopts the path exploring needle to open a way, the exploration road section 1 can be inserted into a human body, the operator holds the antiskid section 5 by the left hand, holds the handle 6 by the right hand to apply pressure inwards, the left hand and the right hand are matched to adjust the direction of the exploration road section 1, the handle 6 with the length of 4cm is beneficial to the operation of the operator, the antiskid section 5 has a certain blocking effect on the right hand, and the sliding loss of the hand under the right hand is prevented.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. Prevent mistake and plant nail backbone pedicle of vertebral arch way probe, its characterized in that, including visiting highway section (1) and operation section (2), visit highway section (1) and be provided with bulb (3) for taper and pointed end, the other end of visiting highway section (1) with operation section (2) are connected, visit highway section (1) including the restriction visit highway section (1) the limit dark section of centrum degree of depth is got into, the one end of limit dark section is provided with bulb (3), the other end is provided with spacing arch (4).

2. The pedicle of vertebral arch approach probe for preventing mis-implantation of nails according to claim 1, wherein the operation section (2) comprises an anti-skid section (5) and a handle (6) integrally formed with the anti-skid section (5), and the anti-skid section (5) is close to the approach section (1).

3. The pedicle approach needle for preventing error implantation of nails in vertebral columns is characterized in that scales (7) are arranged on the depth limiting section.

4. The pedicle approach needle for preventing mis-implantation of nails into the vertebral column according to claim 1 or 2, wherein the depth-limiting section is 4cm in length.

5. The pedicle approach needle for preventing mis-implantation of nails into vertebral pedicle is characterized in that the surface of the anti-slip section (5) is provided with a nick which is not parallel to the axial direction of the operation section (2).

6. The pedicle probe for preventing mis-implantation of nails according to any one of claims 1, 2 or 5, wherein the operation section (2) is tapered with gradually increasing transverse dimension along a direction from the approach of the probe section (1) to a direction away from the probe section (1).

7. The pedicle approach needle for preventing error implantation of nails in vertebral columns is characterized in that the length of the anti-slip section (5) is 12cm, and the length of the handle (6) is 4 cm.

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