CN215458738U

CN215458738U - Preoperative positioning needle

Info

Publication number: CN215458738U
Application number: CN202121294118.1U
Authority: CN
Inventors: 陈文昭
Original assignee: Foshan Jianxiang Hospital Co Ltd
Current assignee: Foshan Jianxiang Hospital Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-01-11
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a preoperative positioning needle, which comprises a mounting shaft and a plurality of positioning assemblies, wherein the mounting shaft is attached to the position of a vertebra along the length direction of the vertebra of a patient, each positioning assembly comprises a sliding part arranged on the mounting shaft in a sliding mode and two positioning needles arranged on the sliding part, a locking part is arranged on the sliding part, and the locking part is used for locking the sliding part. The utility model can adapt the preoperative positioning needle to different patients and improve the adaptability of the preoperative positioning needle.

Description

Preoperative positioning needle

Technical Field

The utility model relates to the field of medical instruments, in particular to a preoperative positioning needle.

Background

When the spinal column part is operated, the puncture point and the puncture direction for correct puncture are the key points for successful operation, and the incidence rate of postoperative complications can be obviously reduced. Thus, prior to surgery, the surgeon is often required to assist in determining the puncture site and puncture direction for the proper puncture with a preoperative positioning device.

At present, positioner before art includes the installation axle and is fixed in the epaxial pilot pin of installation, and the installation axle pastes along vertebra direction and leans on patient back position department, and the pilot pin transversely pastes and leans on patient back. After the X-ray visualization, the physician determines the puncture site and puncture direction by referring to the visualization of the positioning needle on the patient's back.

However, the above-described preoperative positioning device does not exhibit good adaptability in facing different patients or different puncture locations. Therefore, further improvements can be made.

SUMMERY OF THE UTILITY MODEL

In order to improve the adaptability of positioner before the art, this application provides a preoperative pilot pin.

The application provides a preoperative pilot pin adopts following technical scheme:

the utility model provides a preoperative positioning needle, includes installation axle and a plurality of locating component, the installation axle pastes along patient vertebra length direction and leans on in vertebra position department, every locating component all sets up locating needle on the slider including sliding and setting up in the epaxial slider of installation and two, be equipped with the retaining member on the slider, the retaining member is used for locking the slider.

Through adopting above-mentioned technical scheme, when facing different patients, the doctor can slide the adjustment slider according to the distance between the patient's vertebra cone, makes every slider homoenergetic and the clearance between the corresponding cone align, after adjusting slider position, the doctor can pass through retaining member locking slider, makes the slider be difficult for taking place relative slip with the installation axle to make the pilot pin before the art can adapt to different patients, improve the adaptability of pilot pin before the art.

Optionally, the installation axle periphery is located to slider sliding sleeve, a plurality of joint holes have been seted up along its length direction to the installation axle, set up on the slider can be with the through-hole that any one joint hole was aimed at, the retaining member joint is downthehole in through-hole and the joint of aiming at.

Through adopting above-mentioned technical scheme, when facing different patients, the doctor can slide the adjustment slider according to the distance between the patient's vertebra cone, makes every slider homoenergetic and the clearance between the corresponding cone align, after adjusting slider position, the doctor can pass the through-hole joint in the joint hole with the retaining member, makes the slider be difficult for taking place relative slip with the installation axle to make the position needle before the art can adapt to different patients, improve the adaptability of position needle before the art.

Optionally, the installation axle has seted up sharp spout along its length direction, the slider slides in sharp spout, the screw hole that runs through its both ends is seted up on the slider top, retaining member threaded connection is in the screw hole, just retaining member bottom and sharp spout tank bottom looks butt.

Through adopting above-mentioned technical scheme, set up the sharp spout, make the slider can slide in the installation epaxial, when facing different patients, the doctor can come the sliding adjustment slider according to the distance between the patient vertebra cone, make every slider homoenergetic and the clearance between the corresponding cone align mutually, after adjusting the slider position, through screwing up the retaining member, make the bottom and the sharp spout looks butt of retaining member, make the retaining member pass through thread extrusion slider, make slider and sharp spout inner wall looks butt, so that the relative slip can not take place with the installation axle for the slider, so that the pilot pin can adapt to different patients before making, improve the adaptability of pilot pin before the art.

Optionally, each of the positioning pins is rotatably connected with a corresponding sliding member.

Through adopting above-mentioned technical scheme, after the X-ray irradiation development, the doctor can refer to the development of patient's vertebra and pilot pin, through rotating the pilot pin, makes the pilot pin can avoid the bone part of vertebra to the doctor can confirm correct puncture direction through the pilot pin.

Optionally, each sliding member is provided with a protractor.

By adopting the technical scheme, a doctor can record the angle between each positioning needle and the mounting shaft through the protractor, so that the doctor can determine the correct puncture direction according to the recorded angle during operation.

Optionally, the protractor is made of a plastic material.

By adopting the technical scheme, the protractor is not easy to develop after X-ray irradiation, and a doctor can conveniently observe a developed picture of the preoperative positioning needle.

Optionally, the mounting shaft is provided with a first scale.

By adopting the technical scheme, a doctor can accurately adjust the position of each sliding part by referring to the scales, so that each sliding part can be adjusted to the position of the gap between the corresponding vertebral cones.

Optionally, each of the positioning pins is provided with a second scale.

Through adopting above-mentioned technical scheme to the doctor can find the point of stabbing of correct puncture according to the scale on the pilot pin.

Optionally, the installation axle both ends all are equipped with the stabilizer, every the stabilizer all includes two and sets up respectively in the stable foot of installation axle both sides, every the stable foot is kept away from installation axle one end and all is with patient back looks butt.

Through adopting above-mentioned technical scheme, make the installation axle can paste better and lean on at patient's back to make installation axle and pilot pin be difficult for independently taking place to rock, improve the positioning accuracy of pilot pin before the art.

In summary, the present application includes at least one of the following beneficial technical effects:

the sliding piece can slide on the mounting shaft, so that the preoperative positioning needle can adapt to different patients, and the adaptability of the preoperative positioning needle is improved;

the first scale is arranged on the mounting shaft, so that a doctor can accurately adjust the position of each sliding part by referring to the first scale, and each sliding part can be adjusted to a gap position between corresponding vertebral cones;

each sliding piece is provided with a protractor, and a doctor can record the angle between each positioning needle and the mounting shaft through the protractor, so that the doctor can determine the correct puncture direction according to the recorded angle when performing an operation.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic cross-sectional structure diagram of embodiment 1 of the present application.

Fig. 4 is a schematic view of the overall structure of embodiment 2 of the present application. .

Fig. 5 is an enlarged schematic view of a portion B of fig. 4.

Fig. 6 is a schematic cross-sectional structure of embodiment 2 of the present application.

Description of reference numerals:

1. installing a shaft; 11. a clamping hole; 12. a linear chute; 2. a positioning assembly; 21. a slider; 211. a sliding part; 212. a rotating part; 22. a positioning pin; 3. a locking member; 4. a protractor; 5. a first scale; 6. a second scale; 7. a stabilizer frame; 71. a stabilizing foot; 8. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a preoperative positioning needle.

Example 1:

referring to fig. 1 and 2, the locating pin before art includes installation axle 1 and three locating component 2 that adopt titanium alloy material preparation to form, installation axle 1 length is 15cm, installation axle 1 pastes along patient vertebra length direction and leans on in vertebra position department, every locating component 2 all includes slider 21 and two locating pins 22 that adopt titanium alloy material preparation to form, slider 21 slides and sets up on installation axle 1, be equipped with retaining member 3 on the slider 21, retaining member 3 is used for locking slider 21, two locating pins 22 all set up on slider 21, and every locating pin 22 length is 15 cm.

Before an operation, a doctor slides and adjusts the sliding parts 21 according to the distance between vertebral cones of different patients, so that each sliding part 21 can be aligned with the gap between the corresponding cone, after the position of the sliding part 21 is adjusted, the doctor can lock the sliding parts 21 through the locking parts 3, so that the sliding parts 21 are not easy to slide relative to the mounting shaft 1, after X-ray irradiation development, the doctor determines a puncture point and a puncture direction by referring to the development of the preoperative positioning needle on the back of the patient, the preoperative positioning needle can adapt to different patients, and the adaptability of the preoperative positioning needle is improved.

Referring to fig. 3, specifically, each sliding member 21 includes a first sliding portion 211 and a first rotating portion 212, a sinking groove is formed at the bottom end of the first sliding portion 211, the sinking groove penetrates through the front end and the rear end of the first sliding portion 211, the cross section of the sinking groove is a three-quarter circular surface, and the radius of the sinking groove is matched with the radius of the mounting shaft 1, so that the first sliding portion 211 can slide on the mounting shaft 1 through the sinking groove, the first rotating portion 212 is cylindrical, the bottom end of the first rotating portion 212 is fixedly connected with the top end of the first sliding portion 211, and the two positioning pins 22 are disposed on the first rotating portion 212. Be equipped with retaining member 3 on first rotation portion 212, install the axle 1 and evenly set up 30 joint holes 11 with retaining member 3 looks joint adaptation along its length direction, the through-hole has been seted up on first rotation portion 212 top, when sliding part 21, the through-hole can arbitrary one joint hole 11 be aligned mutually, through-hole and retaining member 3 looks cross-under adaptation, after confirming slider 21 position, retaining member 3 can pass the through-hole joint in aligned through-hole and joint hole 11.

After the position of the sliding part 21 is adjusted, a doctor can clamp the locking part 3 in the aligned through hole and the clamping hole 11, so that the sliding part 21 is not easy to slide relative to the mounting shaft 1.

In this embodiment, a connecting hole is formed in an outer wall of one end of each positioning pin 22, an aperture of the connecting hole is larger than an outer diameter of the first rotating portion 212, so that one end of each positioning pin 22 can be sleeved on the periphery of the first rotating portion 212, two sides of the inner wall of each connecting hole are fixed with a spring 8, and one end, far away from the connecting hole, of each spring 8 is abutted to the outer wall of the first rotating portion 212.

After preliminary X-ray irradiation development, the doctor can refer to the development of patient's vertebra and pilot pin 22, through exerting external force to pilot pin 22, make pilot pin 22 can rotate, when pilot pin 22 rotated the position of avoiding the bone part of vertebra, stop exerting external force, because spring 8 has the squeezing action to pilot pin 22 and first rotation portion 212, make pilot pin 22 be difficult for independently taking place relative rotation with first rotation portion 212, make X-ray irradiation development once more can find more accurate position.

Referring to fig. 2 and 3, in order to facilitate the doctor to determine the correct puncture direction, in this embodiment, each first rotating portion 212 is provided with a protractor 4 on the periphery thereof, the protractor 4 is in a circular cake shape, a mounting hole is formed in the center of the protractor 4, and the diameter of the mounting hole is matched with the outer diameter of the first rotating portion 212, so that the first rotating portion 212 can be fastened and fixed in the mounting hole of the protractor 4.

By providing the protractor 4, the doctor can record the angle between each positioning pin 22 and the mounting shaft 1 through the protractor 4, so that the doctor can determine the correct puncture direction according to the recorded angle when performing the operation.

In the present embodiment, the protractor 4 and the sliding member 21 are both made of plastic material. The protractor 4 and the sliding piece 21 are not easy to develop after the X-ray irradiation, so that doctors can conveniently observe the development picture of the preoperative positioning needle.

Referring to fig. 2, in the present embodiment, a first scale 5 is provided on the mounting shaft 1. After the position of each sliding member 21 is preliminarily adjusted, the doctor can accurately adjust the position of each sliding member 21 again by contrasting the first scale 5 with reference to the backbone of the patient and the development of the sliding member 21 through the X-ray irradiation development, so that each sliding member 21 can be accurately adjusted to the position of the gap between the corresponding vertebral cones.

In the present embodiment, each positioning pin 22 is provided with a second scale 6. Since the puncture needles used by the doctor are of different length types, the location of the puncture point should also be determined from the puncture needle to the correct puncture point. The second scale 6 is arranged, so that a doctor can more easily find a puncture point for correct puncture by comparing with the second scale 6.

Referring to fig. 1, in this embodiment, installation axle 1 both ends all are equipped with stabilizer 7, and every stabilizer 7 all includes two stabilizer 71, and two stabilizer 71 one ends are fixed in installation axle 1 both sides respectively, and the other end respectively with the back looks butt of patient vertebra both sides, makes installation axle 1 can paste better and lean on at the patient back to make installation axle 1 and pilot pin 22 be difficult for independently taking place to rock, improve the positioning accuracy of pilot pin before the art.

The implementation principle of the embodiment is as follows: when facing different patients, the doctor places the positioning needle before the operation in the position of the spine of the patient, preliminarily adjusts the position of the sliding part 21 and the angle of the positioning needle 22 through experience, then carries out the first X-ray irradiation development, the doctor firstly observes the developed image of the first X-ray irradiation development, then adjusts the sliding part 21 by referring to the first scale 5 on the mounting shaft 1, so that the sliding part 21 can slide to the position aligned with the gap between the corresponding cones, after the position of the sliding part 21 is determined, the sliding part 21 is not easy to slide relative to the mounting shaft 1 by clamping the locking part 3 in the aligned through hole and the clamping hole 11. After the position of the sliding part 21 is fixed, the positioning needle 22 can be adjusted to the position of the bone part avoiding the spine by rotating the positioning needle 22, so that a doctor can determine the correct puncture direction, the preoperative positioning needle can adapt to different patients, and the adaptability of the preoperative positioning needle is improved.

Example 2:

the present embodiment differs from embodiment 1 in the manner of sliding the slider 21 and the manner of locking the slider 21.

Referring to fig. 4, 5 and 6, specifically, in the present embodiment, each sliding member 21 includes a second sliding portion 211 having a T-shaped cross section and a second rotating portion 212 having a cylindrical shape, the mounting shaft 1 is provided with a linear sliding slot 12 along a length direction thereof, the linear sliding slot 12 is slidably matched with the second sliding portion 211, so that the sliding member 21 can slide in the linear sliding slot 12, a bottom end of the second rotating portion 212 is fixedly connected with a top end of the second sliding portion 211, and two positioning pins 22 are disposed on the second rotating portion 212. The top end of the sliding part 21 is provided with a locking part 3, the top end of the sliding part 21 is provided with a threaded hole penetrating through two ends of the sliding part, and the locking part 3 is in threaded connection with the threaded hole.

Set up sharp spout 12, make slider 21 can slide on installation axle 1, when facing different patients, the doctor can come sliding adjustment slider 21 according to the distance between the patient's vertebra cone, make every slider 21 homoenergetic and the clearance between the corresponding cone align mutually, after adjusting slider 21 position, through screwing up retaining member 3, make the bottom and the looks butt of sharp spout 12 of retaining member 3, make retaining member 3 pass through screw tooth extrusion slider 21, make slider 21 and the looks butt of the 12 inner walls of sharp spout, so that slider 21 is difficult to take place relative slip with installation axle 1 before making, make the location needle before the art can adapt to different patients, improve the adaptability of location needle before the art.

The implementation principle of the embodiment is as follows: when facing different patients, a doctor places the preoperative positioning needle at the position of the spine of the patient, preliminarily adjusts the position of the sliding part 21 and the angle of the positioning needle 22 through experience, then carries out first X-ray irradiation development, firstly, the doctor observes the developed image of the first X-ray irradiation development, then, the sliding part 21 is adjusted by referring to the first scale 5 on the mounting shaft 1, the sliding part 21 can slide to the position aligned with the gap between the corresponding cones through the linear sliding groove 12, and after the position of the sliding part 21 is determined, the sliding part 21 is not easy to slide relative to the mounting shaft 1 by screwing the locking part 3. After the position of the sliding part 21 is fixed, the positioning needle 22 can be adjusted to the position of the bone part avoiding the spine by rotating the positioning needle 22, so that a doctor can determine the correct puncture direction, the preoperative positioning needle can adapt to different patients, and the adaptability of the preoperative positioning needle is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A preoperative locator pin, characterized by: including installation axle (1) and a plurality of locating component (2), installation axle (1) pastes along patient vertebra length direction and leans on in vertebra position department, every locating component (2) all set up slider (21) and two on installation axle (1) and all set up locating pin (22) on slider (21) including sliding, be equipped with retaining member (3) on slider (21), retaining member (3) are used for locking slider (21).

2. The preoperative needle according to claim 1, characterized in that: installation axle (1) periphery is located to slider (21) slip cap, a plurality of joint holes (11) have been seted up along its length direction in installation axle (1), set up the through-hole that can aim at with arbitrary joint hole (11) on slider (21), retaining member (3) joint is in the through-hole and the joint hole (11) of aiming at.

3. The preoperative needle according to claim 1, characterized in that: install axle (1) and seted up sharp spout (12) along its length direction, slider (21) slide in sharp spout (12), the screw hole that runs through its both ends is seted up on slider (21) top, retaining member (3) threaded connection is in the screw hole, just retaining member (3) bottom and sharp spout (12) tank bottom looks butt.

4. A pre-operative positioning needle according to claim 2 or 3, characterized in that: each positioning pin (22) is rotatably connected with a corresponding sliding piece (21).

5. A pre-operative positioning needle according to claim 2 or 3, characterized in that: each sliding piece (21) is provided with a protractor (4).

6. The preoperative needle according to claim 5, wherein: the protractor (4) is made of plastic materials.

7. A pre-operative positioning needle according to claim 2 or 3, characterized in that: the mounting shaft (1) is provided with a first scale (5).

8. A pre-operative positioning needle according to claim 2 or 3, characterized in that: each positioning needle (22) is provided with a second scale (6).

9. A pre-operative positioning needle according to claim 2 or 3, characterized in that: installation axle (1) both ends all are equipped with stabilizer (7), every stabilizer (7) all include two and set up in stabilizing foot (71) of installation axle (1) both sides respectively, every stabilize foot (71) keep away from installation axle (1) one end all with patient back looks butt.