CN210019559U

CN210019559U - Vertebra puncture locator

Info

Publication number: CN210019559U
Application number: CN201920557108.9U
Authority: CN
Inventors: 谢文伟; 谢瀚谊
Original assignee: Dongguan Third People's Hospital (dongguan Shilong People's Hospital)
Current assignee: Dongguan Third People's Hospital (dongguan Shilong People's Hospital)
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-02-07
Anticipated expiration: 2029-04-22

Abstract

The utility model provides a spinal puncture locator, relating to the technical field of medical instruments, comprising a positioning needle, an auxiliary seat, a positioning main body and a sliding puncture tube, wherein the positioning needle is used for puncturing and positioning at a target position; the auxiliary seat is provided with a positioning hole, and the positioning needle can be arranged in the positioning hole in a penetrating way; the positioning main body is arc-shaped, a through groove is formed in the positioning main body along the arc length direction of the positioning main body, a first positioning area and a second positioning area are arranged on the positioning main body, a first positioning point is arranged in the first positioning area, a second positioning point is arranged in the second positioning area, the first positioning point and the second positioning point are located on the same radius of the positioning main body, one end of the positioning main body is detachably connected with the positioning needle, and a puncture endpoint of the positioning needle is located on the center of the positioning main body; the sliding puncture tube is provided with a first through hole for the puncture needle to penetrate through, and the sliding puncture tube can be slidably arranged in the through groove in a penetrating manner; the sliding puncture tube is adjusted to a target angle through the first positioning point and the second positioning point, so that the puncture needle can puncture to a puncture endpoint of the positioning needle.

Description

Vertebra puncture locator

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a vertebra puncture locator.

Background

The spinal endoscopic technique for treating lumbar disc herniation is popular among patients and patients due to absolute minimal invasion, good effect and quick recovery, and is one of spine minimal invasion techniques which are popular in recent years. Establishing a good working channel is a key point for success of the operation, and the good working channel can be established only by placing a guide pin at the lateral position of the superior articular process of the intervertebral disc by a good accurate puncture technology and performing articular process formation. The traditional steps are that the superior articular process is positioned through the body surface under perspective, an operator holds a puncture needle to puncture from the waist side to the approximate direction of the superior articular process at a certain distance, because the puncture needle held by the operator faces a point with a three-dimensional space to puncture, the operator cannot control the accurate puncture condition of the three-dimensional space, the puncture condition is influenced by factors such as the blocking of fascia muscles, the puncture skill level of the operator and the like, the puncture is slightly deviated, the operator cannot reach an accurate target, the operator can face repeated error correction puncture and repeated perspective, the time consumption is too much due to the step, the operator and the patient can bear too much X-ray perspective, the test is brought to the spirit and physical strength of the operator and the patient, the operator is not smoothly buried in a pen, and the operation quality is finally directly influenced.

Therefore, there is a need for a spinal puncture positioner that can improve the accuracy and quality of puncture and save the operation time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vertebra puncture locator that can improve puncture accuracy and puncture quality to can save operation time.

In order to achieve the purpose, the utility model provides a spinal puncture positioner, which comprises a positioning needle, an auxiliary seat, a positioning main body and a sliding puncture tube, wherein the positioning needle is used for puncturing and positioning at a target position; the auxiliary seat is provided with a positioning hole, and the positioning needle can be arranged in the positioning hole in a penetrating manner; the positioning main body is arc-shaped, a through groove is formed in the positioning main body along the arc length direction of the positioning main body, a first positioning area and a second positioning area are arranged on the positioning main body, a first positioning point is arranged in the first positioning area, a second positioning point is arranged in the second positioning area, the first positioning point and the second positioning point are positioned in the same circle center of the positioning main body at the same angle, one end of the positioning main body is detachably connected with the positioning needle, and a puncture end point of the positioning needle is positioned in the circle center of the positioning main body; the sliding puncture tube is provided with a first through hole for a puncture needle to penetrate through, and the sliding puncture tube is slidably arranged in the through groove in a penetrating manner; so as to adjust the sliding puncture tube to a target angle through the first positioning point and the second positioning, so that the puncture needle can puncture to the puncture endpoint of the positioning needle.

Compared with the prior art, the vertebra puncture positioner is provided with the positioning needle, the auxiliary seat, the positioning main body and the sliding puncture tube, so that the positioning needle can be firstly utilized to vertically puncture at the projection point corresponding to the articular process and penetrate into the sclerotin, and the positioning of the target position is realized; then, the positioning needle is positioned in the positioning hole of the auxiliary seat by using the auxiliary seat, so that the bending and displacement of the positioning needle are avoided; then the positioning main body is connected with the positioning needle, the sliding puncture tube is adjusted to a target angle and is positioned at the position corresponding to the first positioning point and the second positioning point on the same radius of the positioning main body, so that the sliding puncture tube is adjusted to the position corresponding to the same circle center and the same angle of the positioning main body, the puncture needle passing through the sliding puncture tube can puncture to the circle center of the positioning main body, and the puncture end point of the positioning needle is positioned at the circle center of the positioning main body, so that the puncture needle can puncture to the target position accurately, therefore, the utility model realizes that the positioning of the three-dimensional space is converted into the positioning of the two-dimensional space by positioning the positioning needle to the target position and connecting the positioning needle with the positioning main body, and then the concentric circle puncture is performed in the two-dimensional space, so that the puncture needle can puncture accurately, thereby greatly improving the puncture accuracy and the puncture target point, and can save the operation time, thereby reducing the X-ray contact between the doctor and the patient and laying a good foundation for successfully completing the operation.

Preferably, the positioning needle comprises a handle portion and a needle portion, the handle portion is detachably connected with the needle portion, and the needle portion is detachably connected with the positioning main body.

Preferably, the needle part is convexly provided with a clamping arm, one end of the positioning main body is provided with a clamping groove, and the clamping arm is connected with the clamping groove in a clamping manner.

Preferably, the auxiliary seat is provided with a first notch communicated with the positioning hole, and the auxiliary seat can position the positioning needle in the positioning hole through the first notch.

Preferably, the number of the positioning holes is multiple, the positioning holes are annularly distributed around a central axis of the auxiliary seat, and the positioning holes are respectively communicated with the first notch.

Preferably, the location main part includes first circular arc portion, second circular arc portion and connecting portion, first circular arc portion with the centre of a circle of second circular arc portion is the same and is located the coplanar, the radius ratio of first circular arc portion the radius of second circular arc portion is big, connecting portion connect in first circular arc portion with between the second circular arc portion, first circular arc portion with second circular arc portion all is equipped with lead to the groove, first locating area set up in on the first circular arc portion, the second locating area set up in on the second circular arc portion, first circular arc portion with at least one in the second circular arc portion with the connection can be dismantled to the pilot pin.

Preferably, one end of the positioning main body connected with the positioning needle is provided with a second notch for accommodating the positioning needle.

Preferably, the fixing device further comprises a fixing column, the fixing column is arranged at the other end of the positioning main body in a penetrating mode in a radial direction of the positioning main body in an adjustable mode, and a supporting plate is arranged at the penetrating end of the fixing column.

Preferably, the positioning body further comprises a locking member for locking the sliding puncture tube to the positioning body.

Preferably, the puncture device further comprises a deviation rectifying puncture tube, the deviation rectifying puncture tube is fixedly connected with the sliding puncture tube through a connecting piece, the deviation rectifying puncture tube is obliquely arranged relative to the sliding puncture tube, and a second through hole for the puncture needle to penetrate through is formed in the deviation rectifying puncture tube along the length direction of the deviation rectifying puncture tube so as to rectify the puncture position of the puncture needle.

Drawings

Fig. 1 is a schematic structural view of the positioning pin of the present invention.

Fig. 2 is a schematic structural view of the positioning pin according to the present invention after the handle portion and the needle portion are separated.

Fig. 3 is a schematic perspective view of the auxiliary seat of the present invention.

Fig. 4 is a schematic structural view of the sliding puncture tube of the present invention in the through groove of the positioning body.

Fig. 5 is an enlarged view at a in fig. 4.

Fig. 6 is a schematic structural view of the sliding puncture tube and the deviation rectifying puncture tube of the present invention when they are connected.

Fig. 7 is a schematic structural view of the positioning pin of the present invention engaged with the auxiliary seat.

Fig. 8 is a schematic structural view of the positioning pin of the present invention when it is engaged with the auxiliary seat and the positioning body.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1, 4, 7 and 8, the spinal puncture locator 100 of the present invention includes a positioning needle 1, an auxiliary seat 2, a positioning main body 3 and a sliding puncture tube 4, wherein the positioning needle 1 is used for puncturing and positioning at a target position; the auxiliary seat 2 is provided with a positioning hole 21, and the positioning needle 1 can be arranged in the positioning hole 21 in a penetrating way; the positioning main body 3 is arc-shaped, a through groove 31 is formed in the positioning main body 3 along the arc length direction of the positioning main body, a first positioning area 32 and a second positioning area 33 are arranged on the positioning main body 3, a first positioning point 321 is arranged on the first positioning area 32, a second positioning point 331 is arranged on the second positioning area 33, the first positioning point 321 and the second positioning point 331 are located on the same radius of the positioning main body 3, one end of the positioning main body 3 is detachably connected with the positioning needle 1, and a puncture endpoint of the positioning needle 1 is located on the center of the circle of the positioning main body 3; the sliding puncture tube 4 is provided with a first through hole 41 for the puncture needle to penetrate through, and the sliding puncture tube 4 is slidably arranged in the through groove 31 in a penetrating manner; so that the sliding puncture tube 4 can be adjusted to a target angle by the first positioning point 321 and the second positioning point 331, so that the puncture needle can be punctured to the puncture end point of the positioning needle 1 through the first through hole 41. Vertically puncturing a surface throwing point corresponding to the articular process by using the positioning needle 1 and penetrating into a bone to realize the positioning of a target position; then, the auxiliary seat 2 is utilized to position the positioning needle 1 in the positioning hole 21 of the auxiliary seat 2, so that the bending and displacement of the positioning needle 1 are avoided; then, the positioning main body 3 is connected with the positioning needle 1, the sliding puncture tube 4 is adjusted to a target angle and is located at the position corresponding to the first positioning point 321 and the second positioning point 331 on the same radius of the positioning main body 3, so that the sliding puncture tube 4 is adjusted to the position corresponding to the same circle center and the same angle of the positioning main body 3, and the puncture needle passing through the sliding puncture tube 4 can puncture the circle center of the positioning main body 3, and the puncture end point of the positioning needle 1 is located on the circle center of the positioning main body 3, so that the puncture needle can puncture the target position accurately. More specifically, the following:

referring to fig. 1, 2, 4 and 8, in the present embodiment, the positioning pin 1 includes a handle portion 11 and a pin portion 12, the handle portion 11 is detachably connected to the pin portion 12, and the pin portion 12 is detachably connected to the positioning body 3. Through setting up handle portion 11, be favorable to the art person to hand this pilot pin 1 and carry out the puncture location. The needle portion 12 can be engaged with the engaging hole 111 of the handle portion 11, but not limited thereto, the detachable connection between the handle portion 11 and the needle portion 12 can also adopt other detachable connection methods, such as: the handle part 11 and the needle part 12 are connected through a corresponding inner hexagonal structure in a clamping mode, a spring buckle is arranged in the handle part 11, a lock releasing button is arranged on the side edge of the handle part 11, and the handle part 11 and the needle part 12 are driven to be clamped or separated through the lock releasing button. However, the detachable connection between the handle 11 and the needle 12 is not limited to this, and the handle 11 and the needle 12 may be detachably connected by a conventional detachable connection method such as a bolt connection. Specifically, the needle portion 12 is convexly provided with a clamping arm 121, one end of the positioning body 3 is provided with a clamping groove 34, and the clamping arm 121 is connected with the clamping groove 34 in a clamping manner. The distance between the puncture point of the needle part 12 and the arm 121 is D1, the distance from the center of the positioning body 3 to the engaging groove 34 is D2, and D1 and D2 are made equal, so that when the positioning needle 1 is connected to the positioning body 3, the puncture point of the positioning needle 1 is positioned on the center of the positioning body 3. In this embodiment, in order to make the engaging connection between the clip arm 121 and the clip groove 34 more stable, the clip groove 34 is "cross" shaped, the clip arm 121 can be engaged with the horizontal bayonet of the clip groove 34, and then the clip arm 121 is fastened by a movable bolt (not shown) through the vertical bayonet of the clip groove 34, thereby improving the engaging connection stability between the clip arm 121 and the clip groove 34. But not limited thereto.

Referring to fig. 3 and 7, the auxiliary seat 2 includes an auxiliary main body 22 and a base 23, the base 23 is disposed at the bottom of the auxiliary main body 22, and the positioning hole 21 is formed in the auxiliary main body 22 and the base 23, that is, the positioning hole 21 is formed by penetrating the auxiliary main body 22 and the base 23. Specifically, the auxiliary body 22 has a cylindrical shape, but the shape of the auxiliary body 22 is not limited thereto. In the present embodiment, in order to facilitate positioning the positioning needle 1 in the positioning hole 21 of the auxiliary seat 2, the auxiliary seat 2 is provided with a first notch 24 communicating with the positioning hole 21, and the auxiliary seat 2 can position the positioning needle 1 in the positioning hole 21 through the first notch 24, specifically, the first notch 24 is opened in the auxiliary main body 22 and the base 23. After the positioning needle 1 is punctured to the target position from the injection point corresponding to the articular process, the auxiliary seat 2 can directly position the positioning needle 1 in the positioning hole 21 through the first notch 24. Of course, in other embodiments, the auxiliary seat 2 may not be provided with the first notch 24, and the positioning needle 1 is directly sleeved in the positioning hole 21, so the disclosure is not limited thereto. Specifically, there are a plurality of positioning holes 21, the plurality of positioning holes 21 are distributed annularly around the central axis of the auxiliary seat 2, and the plurality of positioning holes 21 are respectively communicated with the first notches 24. By arranging the plurality of positioning holes 21, after the auxiliary seat 2 positions the positioning needle 1 which completes the first puncture in one of the positioning holes 21, if the puncture position of the positioning needle 1 deviates and needs to be corrected, the auxiliary seat 2 can be used for positioning, and the positioning needle 1 can be re-inserted from other suitable positioning holes 21 until the positioning needle is accurately inserted into a target position (such as an articular process).

Referring to fig. 4, 5 and 8, in the present embodiment, the positioning main body 3 includes a first arc portion 35, a second arc portion 36 and a connecting portion 37, centers of the first arc portion 35 and the second arc portion 36 are the same and located in the same plane, a radius of the first arc portion 35 is larger than a radius of the second arc portion 36, wherein arc lines of projections of the first arc portion 35 and the second arc portion 36 on the same plane are parallel; the connecting portion 37 is connected between the first arc portion 35 and the second arc portion 36; the first arc part 35 and the second arc part 36 are both provided with a through groove 31, the first positioning area 32 is arranged on the first arc part 35, the second positioning area 33 is arranged on the second arc part 36, the second positioning area 33 is provided with a second positioning point 331 corresponding to the first positioning point 321 of the first positioning area 32 and located at the same radius, that is, the second positioning area 33 is provided with a second positioning point 331 corresponding to the first positioning point 321 of the first positioning area 32 and located at the same angle of the same circle center, specifically, the first positioning area 32 and the second positioning area 33 can both adopt the same and corresponding angle scales, the initial zero angle of the angle scales of the first positioning area 32 and the initial zero angle of the angle scales of the second positioning area 33 are the same, the scales in the angle scales of the first positioning area 32 can be used as the first positioning point 321, the scales in the angle scales of the second positioning area 33 can be used as the second positioning point 331, the sliding puncture tube 4 is arranged in the through groove 31 of the first circular arc part 35 and the through groove 31 of the second circular arc part 36 in a penetrating manner, the part of the sliding puncture tube 4 corresponding to the first circular arc part 35 can be adjusted to a target angle of the first positioning area 32, such as 30 degrees, and the part of the sliding puncture tube 4 corresponding to the second circular arc part 36 can be adjusted to a target angle of the positioning area on the second circular arc part 36, such as the same and corresponding 30 degrees, so that the sliding puncture tube 4 can be aligned to the circle centers of the first circular arc part 35 and the second circular arc part 36, and a puncture needle penetrating through the first through hole 41 of the sliding puncture tube 4 can puncture to the circle center; however, the arrangement mode of the first positioning area and the second positioning area is not limited to this, and the first positioning area and the second positioning area can also adopt a mode of a plurality of positioning holes positioned at the same center and the same angle for positioning the sliding puncture tube; at least one of first circular arc portion 35 and second circular arc portion 36 can be dismantled with pilot pin 1 and be connected, and first circular arc portion 35 and second circular arc portion 36 all can be dismantled with pilot pin 1 and be connected to improve the connection steadiness between pilot pin 1 and the location main part 3, but not this for the limit, one in first circular arc portion 35 and the second circular arc portion 36 can also be dismantled with pilot pin 1 and be connected. It should be noted that in other embodiments, the positioning body 3 may not be divided into the first arc portion 35 and the second arc portion 36, but may also be directly provided with the corresponding first positioning area 32 and the second positioning area 33 at intervals on an arc-shaped positioning body 3. After adjusting the corresponding target angles of the sliding puncture tube 4 corresponding to the first positioning area 32 and the second positioning area 33, in order to stably fix the sliding puncture tube 4 at the target angle, the spinal puncture positioner 100 of the present invention further comprises a locking member 7, wherein the locking member 7 can lock the sliding puncture tube 4 on the positioning main body 3; specifically, the locking members 7 are nuts, the outer side of the sliding puncture tube 4 has a threaded structure, the locking members 7 are sleeved on the sliding puncture tube 4 and are in threaded fit with the sliding puncture tube 4, in this embodiment, the number of the locking members 7 is two, the two locking members 7 can lock the sliding puncture tube 4 to positions corresponding to the first positioning point 321 and the second positioning point 331, and the first positioning point 321 and the second positioning point 331 are located at the same angle of the same circle center; one locking member 7 locks the sliding puncture tube 4 to the first arc portion 35, and the other locking member 7 locks the sliding puncture tube 4 to the second arc portion 36, so that the sliding puncture tube 4 is locked to the first positioning point 321 and the second positioning point 331 located at the same angle from the same center.

Referring to fig. 4, fig. 5 and fig. 8, in the present embodiment, the first arc portion 35 and the second arc portion 36 are both provided with the locking slot 34, and the locking arm 121 of the positioning pin 1 is respectively connected to the locking slot 34 by being locked with the positioning body 3, and specifically, the central angles of the first arc portion 35 and the second arc portion 36 are both 90 degrees. For making the connection between location main part 3 and the pilot pin 1 laminate closely more, the one end that location main part 3 and pilot pin 1 are connected is equipped with the second breach 38 that is used for holding pilot pin 1, specifically, the one end of first circular arc portion 35 and the one end of second circular arc portion 36 all are equipped with this second breach 38, because the one end of first circular arc portion 35 and the one end of second circular arc portion 36 all are equipped with draw-in groove 34, so draw-in groove 34 and second breach 38 can communicate, when the card arm 121 of pilot pin 1 is connected with the draw-in groove 34 block of location main part 3, the needle somatic part of pilot pin 1 is located this second breach 38 and can hug closely in this second breach 38. The spinal puncture locator 100 of the utility model also comprises a fixed column 5, the fixed column 5 can penetrate through the other end of the positioning main body 3 with adjustable penetration depth along the radial direction of the positioning main body 3, and the penetrating end of the fixed column 5 is provided with a support plate 6; specifically, the fixing column 5 is respectively inserted into the first arc portion 35 and the second arc portion 36 of the positioning main body 3, so that the fixing connection between the first arc portion 35 and the second arc portion 36 can be removed, and the fixing column 5 is in threaded connection with the first arc portion 35 and the second arc portion 36 of the positioning main body 3, so that the penetration depth of the fixing column 5 can be adjusted by screwing the fixing column 5, and of course, the manner that the penetration depth of the fixing column 5 can be adjusted along the radial direction of the positioning main body 3 can adopt other existing adjusting manners, such as locking the fixing column 5 which can slide relative to the positioning main body 3 by using a locking component. The fixing column 5 can be adjusted to penetrate into the positioning main body 3 to drive the supporting plate 6 to move, so that the supporting plate 6 can be supported on the waist side skin of the patient to stabilize the positioning main body 3.

Referring to fig. 4 and 6, the spinal puncture locator 100 of the present invention further includes a deviation rectifying puncture tube 8, the deviation rectifying puncture tube 8 is fixedly connected to the sliding puncture tube 4 through a connecting member 9, the deviation rectifying puncture tube 8 is inclined relative to the sliding puncture tube 4, and the deviation rectifying puncture tube 8 is provided with a second through hole 81 for the puncture needle to penetrate along the length direction thereof so as to rectify the puncture position of the puncture needle. The connecting member 9 may be an existing connecting member such as a connecting rod. Wherein, can be detachable between deviation correcting puncture pipe 8 and the connecting piece 9 and be connected, if the block is connected, can be fixed connection between connecting piece 9 and the slip puncture pipe 4, make when needing to use deviation correcting puncture pipe 8, can install deviation correcting puncture pipe 8 on connecting piece 9, when need not using deviation correcting puncture pipe 8, can dismantle the puncture of rectifying a deviation, in order to make things convenient for operation slip puncture pipe 4, but the connected mode of deviation correcting puncture pipe 8 is not so limited, be connected between deviation correcting puncture pipe 8 and the connecting piece 9 also can be fixed connection. Specifically, the number of the deviation rectifying puncture tubes 8 is a plurality of, a plurality of deviation rectifying puncture tubes 8 are arranged around the sliding puncture tube 4, as in this embodiment, the number of the deviation rectifying puncture tubes 8 is four, four deviation rectifying puncture tubes 8 are respectively arranged in an inclined manner relative to the sliding puncture tube 4, four deviation rectifying puncture tubes 8 are respectively gathered towards the direction of the sliding puncture tube 4, and each deviation rectifying puncture tube 8 and the delay line of the sliding puncture tube 4 in the length direction are all located near the circle center periphery of the positioning main body 3, so that the puncture position of the puncture needle can be rectified by the deviation rectifying puncture tubes 8, the number of the deviation rectifying puncture tubes 8 is not limited thereto, and the deviation rectifying puncture tubes 8 can be one, two or three, and the like. After the angle of the sliding puncture tube 4 is adjusted to the same target angle corresponding to the first positioning area 32 and the second positioning area 33, the sliding puncture tube 4 is aligned with the center of the positioning body 3, so that the puncture needle penetrating through the sliding puncture tube 4 can be punctured to the center of the positioning body 3, because the deviation-correcting puncture tube 8 is obliquely arranged relative to the sliding puncture tube 4, and the delay lines of the deviation-correcting puncture tube 8 and the sliding puncture tube 4 in the length direction can be intersected on the peripheral track of the center of the positioning body 3 with the same radius (such as 5mm), the puncture needle penetrating through the second through hole 81 of the deviation-correcting puncture tube 8 can also be punctured to the peripheral position of the center of the positioning body 3, and further, the puncture needle penetrating through the deviation-correcting puncture tube 8 can be punctured to the target position. Because the puncture needle that punctures through the first through-hole 41 of slip puncture pipe 4 receives the influence of factors such as machining error, the artificial error of part, through setting up the puncture pipe 8 of rectifying, when the position that the puncture needle punctures through slip puncture pipe 4 has the deviation apart from the target position, puncture again through this puncture pipe 8 of rectifying of accessible to rectify, thereby further improve the accurate nature and the puncture quality of puncture.

Referring to fig. 7 and 8 in conjunction with fig. 1 to 6, the spinal puncture positioning device 100 of the present invention has the following working principle:

the first step is as follows: after the position of the upper articular process projection of the patient is determined by fluoroscopy, the positioning needle 1 is used for vertically puncturing at the corresponding projection point and puncturing to the target position (the positioning needle 1 can be inserted into the sclerotin for 3mm and tightened after touching the sclerotin, but not limited to this). The second step is that: dismantle the handle portion 11 of pilot pin 1, embolia the needle portion 12 of this pilot pin 1 from its first breach 24 department with auxiliary seat 2, in order to stabilize the location effect to this needle portion 12, when the position of the perpendicular puncture of pilot pin 1 needs to be corrected, reset pilot pin 1 from the locating hole 21 of auxiliary seat 2, in order to guarantee that pilot pin 1 penetrates articular process department accurately, available operation film is fixed in on patient's body surface skin with the base 23 of auxiliary seat 2, be favorable to stabilizing pilot pin 1, make pilot pin 1 difficult to bend and shift in auxiliary seat 2. The third step: the locking groove 34 of the first arc part 35 and the locking groove 34 of the second arc part 36 of the positioning main body 3 are respectively locked with the corresponding locking arms 121 on the needle part 12, the needle part 12 is tightly attached to the second notch 38, and the positioning main body 3 and the needle part 12 are further locked by bolting the locking grooves 34, so that the positioning main body 3 and the needle part 12 are integrated. The fourth step: the fixing column 5 is screwed to make the supporting plate 6 abut on the waist side skin of the patient so as to stably position the main body 3. The fifth step: the puncture direction is determined according to preoperative image data, the positioning main body 3 can swing around the positioning needle 1 by taking the positioning needle 1 as an axis to determine a proper direction, then the sliding puncture tube 4 is driven to slide along the sliding groove, the sliding puncture tube 4 is adjusted to the positions of the first positioning point 321 and the second positioning point 331 which are positioned on the same radius of the corresponding positioning main body 3, the sliding puncture tube 4 is adjusted to the position corresponding to the same circle center and the same angle of the positioning main body 3, the sliding puncture tube 4 is respectively locked on the first circular arc part 35 and the second circular arc part 36 by the locking piece 7, the sliding puncture tube 4 is aligned with the circle center of the positioning main body 3, and the puncture needle passing through the sliding puncture tube 4 can puncture to the circle center of the positioning main body 3, namely the puncture needle passing through the sliding puncture tube 4 can puncture to the target position positioned by the positioning needle 1. And a sixth step: the puncture needle provided by the spinal endoscope bag extends into the first through hole 41 of the sliding puncture tube 4 and punctures until the puncture needle reaches the side of the upper articular process, the puncture point position is verified in a perspective mode, if the puncture point position has deviation, the deviation-correcting puncture tube 8 at the better position is selected for re-puncturing through the deviation-correcting puncture tube 8.

In summary, since the spinal puncture positioner 100 of the present invention is provided with the positioning needle 1, the auxiliary seat 2, the positioning body 3 and the sliding puncture tube 4, the positioning needle 1 can be firstly utilized to vertically puncture at the injection point corresponding to the articular process and penetrate into the bone, so as to position the target position; then, the auxiliary seat 2 is utilized to position the positioning needle 1 in the positioning hole 21 of the auxiliary seat 2, so that the bending and displacement of the positioning needle 1 are avoided; then the positioning main body 3 is connected with the positioning needle 1, the sliding puncture tube 4 is adjusted to a target angle and is positioned at the position corresponding to the first positioning point 321 and the second positioning point 331 on the same radius of the positioning main body 3, so that the sliding puncture tube 4 is adjusted to the position corresponding to the same circle center and the same angle of the positioning main body 3, thereby the puncture needle passing through the sliding puncture tube 4 can puncture to the circle center of the positioning main body 3, and the puncture end point of the positioning needle 1 is positioned on the circle center of the positioning main body 3, so that the puncture needle can puncture to the target position accurately, therefore, the utility model realizes that the positioning needle 1 is positioned to the target position and the positioning needle 1 is connected with the positioning main body 3, thereby converting the positioning of the three-dimensional space into the positioning of the two-dimensional space, and then the positioning target point puncture is performed in the two-dimensional space, so that the puncture needle can puncture accurately, greatly improves the accuracy and quality of puncture and saves the operation time, thereby reducing the X-ray contact between the doctor and the patient and laying a good foundation for successfully completing the operation.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. A spinal puncture locator, comprising:

the positioning needle is used for puncturing and positioning at a target position;

the auxiliary seat is provided with a positioning hole, and the positioning needle can be arranged in the positioning hole in a penetrating manner;

the positioning main body is arc-shaped, a through groove is formed in the positioning main body along the arc length direction of the positioning main body, a first positioning area and a second positioning area are arranged on the positioning main body, a first positioning point is arranged in the first positioning area, a second positioning point is arranged in the second positioning area, the first positioning point and the second positioning point are positioned in the same circle center of the positioning main body at the same angle, one end of the positioning main body is detachably connected with the positioning needle, and a puncture end point of the positioning needle is positioned in the circle center of the positioning main body;

the sliding puncture tube is provided with a first through hole for a puncture needle to penetrate through, and the sliding puncture tube is slidably arranged in the through groove in a penetrating manner; so as to adjust the sliding puncture tube to a target angle through the first positioning point and the second positioning, so that the puncture needle can puncture to the puncture endpoint of the positioning needle.

2. The spinal puncture positioner of claim 1, wherein the positioning pin includes a handle portion and a pin portion, the handle portion being removably coupled to the pin portion, the pin portion being removably coupled to the positioning body.

3. The spinal puncture locator according to claim 2, wherein the needle portion is convexly provided with a clamping arm, one end of the locating body is provided with a clamping groove, and the clamping arm is connected with the clamping groove in a clamping manner.

4. The spinal puncture locator of claim 1, wherein the auxiliary seat is provided with a first notch in communication with the locating hole, and the auxiliary seat can locate the locating needle in the locating hole through the first notch.

5. The spinal puncture locator of claim 4, wherein the number of the locating holes is plural, the plurality of locating holes are distributed annularly around the central axis of the auxiliary seat, and the plurality of locating holes are respectively communicated with the first gap.

6. The spinal puncture positioner according to claim 1, wherein the positioning body comprises a first arc portion, a second arc portion and a connecting portion, the circle centers of the first arc portion and the second arc portion are the same and are located in the same plane, the radius of the first arc portion is larger than that of the second arc portion, the connecting portion is connected between the first arc portion and the second arc portion, the first arc portion and the second arc portion are both provided with the through groove, the first positioning area is arranged on the first arc portion, the second positioning area is arranged on the second arc portion, and at least one of the first arc portion and the second arc portion is detachably connected with the positioning needle.

7. The spinal puncture locator of claim 1, wherein the end of the positioning body connected to the positioning needle is provided with a second notch for receiving the positioning needle.

8. The spinal puncture locator according to claim 1, further comprising a fixing column adjustably inserted through the other end of the positioning body in a radial direction of the positioning body, and a support plate is provided at a penetrating end of the fixing column.

9. The spinal puncture positioner of claim 1, further comprising a lock that locks the sliding puncture tube to the positioning body.

10. The spinal puncture locator according to claim 1, further comprising a deviation-rectifying puncture tube, wherein the deviation-rectifying puncture tube is fixedly connected with the sliding puncture tube through a connecting piece, the deviation-rectifying puncture tube is obliquely arranged relative to the sliding puncture tube, and a second through hole for the puncture needle to penetrate through is arranged in the deviation-rectifying puncture tube along the length direction of the deviation-rectifying puncture tube so as to correct the puncture position of the puncture needle.