CN216060687U

CN216060687U - Laser locator for intraspinal anesthesia under ultrasonic guidance, needle guide and positioning scanning system

Info

Publication number: CN216060687U
Application number: CN202122263345.4U
Authority: CN
Inventors: 彭云; 张文超; 杨小宇; 杨薇
Original assignee: Beijing Jishuitan Hospital
Current assignee: Beijing Jishuitan Hospital
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-03-18
Anticipated expiration: 2031-09-17

Abstract

The utility model provides a laser positioner for intraspinal anesthesia under ultrasonic guidance, a needle guide and a positioning scanning system. Wherein, the laser locator of intraspinal anesthesia under the supersound guide, including fixed cover, four laser module distribute respectively in the side all around of fixed cover, and the axis homogeneous phase of four laser modules sets up to fixed cover slant, and the laser module adopts the bundle of rays of throwing to be a word or cross laser head. The laser locator can realize the positioning of the angle and the direction in the three-dimensional space through the projection rays of a plurality of rays on the plane, thereby being convenient for an anaesthetist to judge the puncture direction and the puncture point according to a determined coordinate system, having higher precision and avoiding the problem of inaccurate puncture mode caused by the misjudgment of the anaesthetist.

Description

Laser locator for intraspinal anesthesia under ultrasonic guidance, needle guide and positioning scanning system

Technical Field

The utility model relates to the field of medical anesthesia, in particular to a laser positioner, a needle guide and a positioning and scanning system for intraspinal anesthesia under ultrasonic guidance.

Background

Intraspinal anesthesia is a common anesthesia method for clinical lower abdominal and lower limb operations, and the conventional intraspinal anesthesia is to determine a puncture point through anatomical positioning and determine whether a puncture cannula is in place or not through the experience of an anesthesiologist. The ultrasonic can clearly display the vertebral canal and the surrounding anatomical structures thereof, enables the anesthesia in the vertebral canal to be visual and accurate, has great significance, and is especially suitable for old people, obese patients, pregnant women, patients with lumbar degenerative disease, the past lumbar surgery history and patients with abnormal anatomy. The operation of such anesthesia requires a high level of operation for the physician, and requires the physician to determine the puncture gap and puncture point according to the ultrasound image and the experience, and mark the skin by marking lines (as shown in fig. 13), and then the anesthesia physician punctures the skin according to the marking lines and the experience.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ultrasonic-guided intraspinal anesthesia laser positioner and a needle guide which can assist in positioning the ultrasonic-guided intraspinal anesthesia.

The technical scheme adopted by the utility model for solving the problems is as follows:

the utility model provides a laser locator of intraspinal anesthesia under ultrasonic guidance which characterized in that: including fixed cover, four laser module distribute respectively in the side all around of fixed cover, and the axis homogeneous phase of four laser moulds sets up to fixed cover slant, and the laser module adopts the bundle of rays of throwing to be a word or cross laser head.

Further as preferred, the fixed retaining member of installing on sheathe in, the retaining member adopts screw-thread fit to install the adjusting screw on fixed cover.

The present invention also provides a needle guide characterized in that: the laser positioner comprises a handle piece and a guide seat, wherein the laser positioner is fixed on the handle piece, the handle piece is provided with a groove, the opening of the groove is opened towards the front side surface, the guide seat is provided with a guide hole, the guide hole is used for inserting an anesthetic needle tube, the axis of the anesthetic needle tube inserted into the guide hole is coaxial with the axis of the guide hole, the guide hole is positioned at the central point of the lower end of the guide seat, rays emitted by a left laser module and a right laser module on the laser positioner are positioned on the same plane, the plane passes through the central point of the lower end of the guide seat, the rays emitted by a front laser module and a rear laser module on the laser positioner are positioned on the same plane, and the plane also passes through the central point of the lower end of the guide seat.

Preferably, the guide seat comprises a front seat body and a rear seat body, the rear seat body is fixed at the lower end of the handle piece, one end of the front seat body is rotatably mounted at one end of the rear seat body, the other end of the front seat body and the other end of the rear seat body are locked by inserting the bolts of the front seat body and the rear seat body, and the other end of the front seat body and the other end of the rear seat body can be separated after the bolts are pulled out, so that the front seat body can rotate relative to one end of the rear seat body, the front seat body and the rear seat body are both provided with half-groove structures, and the guide holes are formed when the front seat body and the rear seat body are spliced together.

Preferably, a torsion spring is sleeved on the rotating shaft for connecting one end of the front seat body and one end of the rear seat body, and two ends of the torsion spring are respectively fixed on the front seat body and the rear seat body, so that after the bolt is pulled out, the front seat body can automatically rotate relative to one end of the rear seat body.

Preferably, the latch is located on the left side face or the right side face of the handle piece, and a draw hook convenient for being pulled by fingers is fixed on the latch.

The utility model also provides a positioning scanning system for the intraspinal anesthesia under the guidance of the ultrasound, which is characterized by comprising an ultrasonic probe and a needle guider for guiding the insertion of a needle tube of an anesthesia needle; the first laser locator is fixedly arranged on the ultrasonic probe; the second laser positioner is used for being installed on the needle guide device, wherein the needle guide device comprises a handle piece and a guide seat, the handle piece is provided with a slot, the opening of the slot is opened towards the front side surface, the guide seat is provided with a guide hole, the guide hole is used for inserting an anesthesia needle tube, the axis of the anesthesia needle tube inserted into the guide hole is coaxial with the axis of the guide hole, the guide hole is positioned at the central point of the lower end of the guide seat, the first laser positioner and the first laser positioner respectively comprise a fixing sleeve and four laser modules, the four laser modules are respectively distributed at the front side, the rear side, the left side and the right side of the fixing sleeve, the axes of the four laser modules are obliquely arranged relative to the fixing sleeve, the laser modules adopt a ray casting beam as a linear or cross laser head, the positions of the four laser modules on the first laser positioner relative to the central point of the lower end of the ultrasonic probe are respectively the same as the positions of the four laser modules on the second laser positioner relative to the central point of the lower end of the guide seat, the rays emitted by the left laser module and the right laser module on the first laser positioner are on the same plane, the center point of the lower end of the ultrasonic probe is crossed by the plane, the rays emitted by the front laser module and the rear laser module on the first laser positioner are on the same plane, the center point of the lower end of the ultrasonic probe is also crossed by the plane, the rays emitted by the left laser module and the right laser module on the second laser positioner are on the same plane, the center point of the lower end of the guide seat is crossed by the plane, the rays emitted by the front laser module and the rear laser module on the second laser positioner are on the same plane, and the center point of the lower end of the guide seat is also crossed by the plane.

Further preferably, the positioning and scanning system further comprises a positioning application for being applied on the back, the positioning application comprises an application body for being stuck on the skin of the back and a printing layer glued on the application body, a window is formed in the center area of the application body and used for avoiding the contact area between the ultrasonic probe and the skin of the back, and a printing pattern for marking the projection position of the laser beam is printed on the printing layer.

Further preferably, the printed pattern is a plurality of circular ring patterns nested concentrically from inside to outside, and each circular ring pattern is marked with a position mark.

Compared with the prior art, the utility model has the following advantages and effects:

(1) the laser locator can realize the positioning of the angle and the direction in the three-dimensional space through the projection rays of a plurality of rays on the plane, thereby being convenient for an anaesthetist to judge the puncture direction and the puncture point according to a determined coordinate system, having higher precision and avoiding the problem of inaccurate puncture mode caused by the misjudgment of the anaesthetist.

(2) The needle guide can be convenient for an anaesthetist to quickly and accurately perform puncture operation, and the laser locator has simple structure and lower production and manufacturing cost and is beneficial to popularization.

Drawings

Fig. 1 is a schematic diagram of an ultrasound probe commonly used for intravertebral anesthesia under ultrasound guidance in the prior art.

Fig. 2 is a schematic structural diagram of a first laser positioner and a second laser positioner according to an embodiment of the present invention.

FIG. 3 is a schematic illustration of the installation of a first laser positioner according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of an internal structure of a first laser positioner according to an embodiment of the present invention.

FIG. 5 is a schematic view of the mounting of a second laser positioner (from the rear side of the handle member) according to an embodiment of the present invention.

FIG. 6 is a schematic view of the mounting of a second laser positioner (from the front side of the handle member) according to an embodiment of the present invention.

FIG. 7 is a schematic view of the insertion process of the anesthetic needle cannula according to the embodiment of the present invention.

Fig. 8 is a schematic structural view of the guide base of the embodiment of the present invention in a state of being assembled.

Fig. 9 is a schematic structural view of the guide holder according to the embodiment of the present invention in an open state.

FIG. 10 is a schematic view showing the internal structure of the needle guide for inserting the needle tube of the anesthetic needle according to the embodiment of the present invention.

FIG. 11 is a schematic diagram of step 1 according to an embodiment of the present invention.

FIG. 12 is a schematic diagram of step 2 of an embodiment of the present invention.

Fig. 13 is a schematic diagram of a conventional manual marking of points under ultrasound-guided intra-spinal anesthesia (see magnified section for a way of marking).

Reference numerals: the needle guide device comprises a needle guide 1, a handle piece 11, a guide seat 12, a front seat body 121, a rear seat body 122, a bolt 123, a draw hook 124, a slot 13, a guide hole 14, a half-slot structure 141, a central point 15 at the lower end of the guide seat, a first laser positioner 2, a second laser positioner 3, a fixing sleeve 231, a laser module 232, a locking member 233, an application body 4, a window 41, a printing pattern 42, a projection line 51, a manual marking point 52, an ultrasonic probe 6, a central point 61 at the lower end of the ultrasonic probe, and an anesthetic needle tube 7

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.

Referring to fig. 2-10, the positioning and scanning system for the ultrasonic-guided intraspinal anesthesia of the present embodiment includes the following components: an ultrasonic probe 6, a needle guide 1 for guiding the insertion of an anesthetic needle tube 7; a first laser locator 2 fixedly mounted on the ultrasonic probe 6; a second laser locator 3 for mounting on the needle guide 1; a positioning application for application on the back,

the needle guide 1 comprises a handle piece 11 and a guide seat 12, wherein the handle piece 11 is provided with a slot 13, the opening of the slot 13 is open towards the front side, the guide seat 12 is provided with a guide hole 14, the guide hole 14 is used for inserting an anesthetic needle tube 7, the axis of the anesthetic needle tube 7 inserted into the guide hole 14 is coaxial with the axis of the guide hole 14, and the guide hole 14 is located at the central point 15 at the lower end of the guide seat.

As a further preferable feature of this embodiment, the guide seat 12 includes a front seat body 121 and a rear seat body 122, the rear seat body 122 is fixed to the lower end of the handle 11, one end of the front seat body 121 is rotatably installed at one end of the rear seat body 122, the other end of the front seat body 121 and the other end of the rear seat body 122 are locked by inserting the pins 123 into the front seat body and the rear seat body, after the pins 123 are pulled out, the other end of the front seat body 121 and the other end of the rear seat body 122 can be separated, so that the front seat body 121 can rotate relative to one end of the rear seat body 122, the front seat body 121 and the rear seat body 122 are both provided with half-slot structures 141, and when the front seat body 121 and the rear seat body 122 are assembled together, the guide hole 14 is formed. The purpose of adopting the structure is to enable the anesthetic needle tube 7 to be separated from the guide seat 12 by relatively rotating and opening the front seat body 121 and the rear seat body 122 after the anesthetic needle tube 7 is inserted along the axis of the guide hole 14, so that the needle guide 1 can be quickly and conveniently withdrawn, a space is reserved for the subsequent anesthetic needle tube 7 to be connected into the anesthetic needle tube, and the subsequent operation is convenient.

As a further preference of this embodiment, a torsion spring is sleeved on the rotating shaft for connecting one end of the front seat 121 and one end of the rear seat 122, and two ends of the torsion spring are respectively fixed on the front seat 121 and the rear seat 122, so that after the plug 123 is pulled out, the front seat 121 can automatically rotate relative to one end of the rear seat 122.

As a further preferred embodiment, the latch 123 is located on the left side or the right side of the handle member 11, and a hook 124 for pulling up a finger is fixed on the latch 123.

First laser locator 2 and first laser locator 2 all include fixed cover 231, four laser module 232 distribute respectively in the side all around of fixed cover 231, and the axis homogeneous phase of four laser moulds sets up to fixed cover 231 slant, and laser module 232 adopts the bundle of rays of throwing to be a word or cross laser head, and the position of four laser module 232 on the first laser locator 2 relative ultrasonic probe lower extreme central point 61 (being supersound transmission point) respectively with the central point 15 (being the lower extreme point of guide hole 14, also be the point of wearing out of anesthesia needle tubing 7) of four laser module 232 on the relative guide holder lower extreme of second laser locator 3 central point 15. The rays emitted by the left and right laser modules 232 on the first laser positioner 2 are on the same plane, and the plane passes through the center point 61 at the lower end of the ultrasonic probe, the rays emitted by the front and rear laser modules 232 on the first laser positioner 2 are on the same plane, and the plane also passes through the center point 61 at the lower end of the ultrasonic probe, the rays emitted by the left and right laser modules 232 on the second laser positioner 3 are on the same plane, and the plane passes through the center point 15 at the lower end of the guide seat, the rays emitted by the front and rear laser modules 232 on the second laser positioner 3 are on the same plane, and the plane also passes through the center point 15 at the lower end of the guide seat,

as a further preference of this embodiment, the fixing sleeve 231 of the first laser locator 2 is sleeved on the upper end of the ultrasonic probe 6 and is locked and fixed on the ultrasonic probe 6 by the locking member 233. The fixing sleeve 231 of the second laser locator 3 is sleeved on the upper end of the handle member 11 of the needle guide 1 and is locked and fixed on the handle member 11 through a locking member 233, and the locking member 233 is mounted on the adjusting screw on the fixing sleeve 231 in a threaded fit manner. The end of the adjusting screw on the first laser locator 2 is pressed against the ultrasonic probe 6, so that the fixing sleeve 231 and the ultrasonic probe 6 are fixed. The end of the adjusting screw on the second laser locator 3 is pressed against the handle piece 11, so as to fix the fixing sleeve 231 and the handle piece 11.

The positioning application comprises an application body 4 and a printing layer, wherein the application body 4 is used for being stuck on the skin of the back, the printing layer is glued on the application body 4, a window 41 is formed in the center area of the application body 4, the window 41 is used for avoiding the contact area of the ultrasonic probe 6 and the skin of the back, and a printing pattern 42 used for marking the projection position of a laser beam is printed on the printing layer.

As a further preference of this embodiment, the printed pattern 42 is a plurality of circular ring patterns nested concentrically from inside to outside, and each circular ring pattern is marked with a position mark. The position marks are formed by separating the circular ring patterns at equal angles.

The working process and principle of the positioning scanning system for the intravertebral anesthesia under the guidance of the ultrasound are explained as follows:

the pre-preparation work before the operation includes: the first laser locator 2 is fixedly mounted on the ultrasound probe 6 and the second laser locator 3 is fixedly mounted on the needle guide 1. And checking that the following installation results are satisfied: the positions of the four laser modules 232 on the first laser positioner 2 relative to the central point 61 (i.e. the ultrasonic emission point) of the lower end of the ultrasonic probe are respectively the same as the positions of the four laser modules 232 on the second laser positioner 3 relative to the central point 15 (i.e. the lower end point of the guide hole 14, which is also the penetrating point of the anesthetic needle tube 7) of the lower end of the guide seat. The rays emitted by the left and right laser modules 232 on the first laser positioner 2 are on the same plane, and the plane passes through the center point 61 at the lower end of the ultrasonic probe, the rays emitted by the front and rear laser modules 232 on the first laser positioner 2 are on the same plane, and the plane also passes through the center point 61 at the lower end of the ultrasonic probe, the rays emitted by the left and right laser modules 232 on the second laser positioner 3 are on the same plane, and the plane passes through the center point 15 at the lower end of the guide seat, the rays emitted by the front and rear laser modules 232 on the second laser positioner 3 are on the same plane, and the plane also passes through the center point 15 at the lower end of the guide seat.

The principle of working with the positioning and scanning system for the ultrasonic-guided intraspinal anesthesia of the embodiment is as follows

Step 1, a doctor in charge of the ultrasonic image judges a rough puncture point area of a patient lying on the side on a sickbed, and attaches a positioning application on the back skin of the patient, the predicted puncture point area is positioned in a window 41 area of the positioning application,

step 2, a doctor in charge of the ultrasound image observes the ultrasound image combination experience, moves the ultrasound probe 6 and changes the angle of the ultrasound probe 6 until the ultrasound image meets the requirements of a puncture gap, a puncture point and a puncture angle, at the moment, the axis of the ultrasound probe 6 is the puncture angle, the midpoint of the lower end of the ultrasound probe 6 is the puncture point, and then observes the position of a position mark of a positioning application where a projection line 51 of laser emitted by four laser modules 232 of the first laser locator 2 is located, and marks a manual mark point 52 with a recording pen, wherein the requirements of the manual mark point 52 are as follows: the projection line 51 of the laser emitted by each laser module 232 on the positioning application marks at least 2 manual marking points 52. The ultrasound probe 6 is then evacuated. The manual marking points 52 are connected, and the intersection points of the connection lines of the manual marking points 52 in the area of the positioning application window 41 are the puncture points to be punctured by the needle tube 7 of the anesthetic needle.

The doctor in charge of anesthesia moves the lower end center point of the needle guide 1 to the puncture point and changes the angle of the needle guide 1, so that the projection lines 51 of the laser emitted by the four laser modules 232 of the second laser positioner 3 on the positioning application are all overlapped with the corresponding manual mark points 52, and the axis of the guide hole 14 of the needle guide 1 is the puncture angle; then the anesthetic needle tube 7 is put into the notch 13 and the anesthetic needle tube 7 is inserted along the guide hole 14; after the insertion is completed, the latch 123 is pulled upwards manually through the draw hook 124, the front seat body 121 and the rear seat body 122 are opened in a relative rotation manner, so that the anesthetic needle tube 7 is separated from the guide seat 12, and the needle guide 1 is removed; the needle tube 7 of the anesthetic needle is connected with an anesthetic needle cylinder for anesthesia.

(3) because the angle and the direction under the three-dimensional space can not be positioned in the existing ultrasonic-guided intraspinal anesthesia, marking can only be performed on the skin by marking, and marking is performed according to experience, underlining accuracy under the condition that ultrasonic image judgment is correct and the understanding of an anesthesiologist on the angle possibly have deviation, which affects the precision and the accuracy of the ultrasonic-guided intraspinal anesthesia operation. The positioning scanning system can realize the positioning of the angle and the direction in the three-dimensional space through the projection rays of a plurality of rays on the plane, thereby being convenient for an anesthesiologist to judge the puncture direction and the puncture point according to a determined coordinate system, having higher precision and avoiding the problem of inaccurate puncture mode caused by the misjudgment of the anesthesiologist.

(4) Compared with the existing mode that the puncture point of intraspinal anesthesia is judged manually under ultrasonic guidance, the method provided by the utility model has the advantages that the accuracy and the precision are higher by the mode that the intersection point of ray projection is used for determining.

(5) The first laser positioner, the second laser positioner and the positioning application used by the positioning scanning system for intraspinal anesthesia under ultrasonic guidance are simple in structure, low in production and manufacturing cost and beneficial to popularization.

The positioning mode operation steps of the positioning scanning system for intraspinal anesthesia under ultrasonic guidance are simple, and the positioning scanning system is beneficial to an inexperienced anesthesiologist to quickly realize accurate intraspinal anesthesia operation.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a laser locator of intraspinal anesthesia under ultrasonic guidance which characterized in that: including fixed cover, four laser module distribute respectively in the side all around of fixed cover, and the axis homogeneous phase of four laser moulds sets up to fixed cover slant, and the laser module adopts the bundle of rays of throwing to be a word or cross laser head.

2. The ultrasonically guided intraspinal anesthesia laser positioner of claim 1, wherein: the fixed retaining member of installing on sheathe in, the retaining member adopts screw-thread fit to install the adjusting screw on fixed cover.

3. A needle guide, comprising: the laser positioner comprises a handle piece and a guide seat, wherein the handle piece is fixed with the laser positioner according to claim 1, the handle piece is provided with a groove, the opening of the groove is opened towards the front side surface, the guide seat is provided with a guide hole, the guide hole is used for inserting an anesthetic needle tube, the axis of the anesthetic needle tube inserted into the guide hole is coaxial with the axis of the guide hole, the guide hole is positioned at the central point of the lower end of the guide seat, rays emitted by the left laser module and the right laser module on the laser positioner are positioned on the same plane, the plane passes through the central point of the lower end of the guide seat, rays emitted by the front laser module and the rear laser module on the laser positioner are positioned on the same plane, and the plane also passes through the central point of the lower end of the guide seat.

4. The needle introducer of claim 3, wherein: the guide seat comprises a front seat body and a rear seat body, the rear seat body is fixed at the lower end of the handle piece, one end of the front seat body is rotatably installed at one end of the rear seat body, the other end of the front seat body and the other end of the rear seat body are locked by inserting the bolts of the front seat body and the rear seat body, after the bolts are pulled out, the other end of the front seat body and the other end of the rear seat body can be separated, so that the front seat body can rotate relative to one end of the rear seat body, the front seat body and the rear seat body are both provided with a half-groove structure, and when the front seat body and the rear seat body are spliced together, the guide hole is formed.

5. The needle introducer of claim 4, wherein: a torsion spring is sleeved on a rotating shaft used for connecting one end of the front seat body and one end of the rear seat body, and the two ends of the torsion spring are respectively fixed on the front seat body and the rear seat body, so that after the bolt is pulled out, the front seat body can automatically rotate relative to one end of the rear seat body.

6. The needle introducer of claim 4, wherein: the bolt is located the left surface or the right surface of handle spare, is fixed with the drag hook that the finger of being convenient for was pulled on the bolt.

7. A positioning scanning system for intraspinal anesthesia under ultrasonic guidance is characterized by comprising an ultrasonic probe and a needle guider for guiding the insertion of an anesthetic needle tube; the first laser locator is fixedly arranged on the ultrasonic probe; a second laser locator for mounting on the needle guide, wherein,

the needle guide comprises a handle piece and a guide seat, wherein the handle piece is provided with a groove, the opening of the groove is opened towards the front side surface, the guide seat is provided with a guide hole, the guide hole is used for inserting an anesthetic needle tube, the axis of the anesthetic needle tube inserted into the guide hole is coaxial with the axis of the guide hole, the guide hole is positioned at the central point of the lower end of the guide seat,

the first laser positioner and the first laser positioner respectively comprise a fixed sleeve and four laser modules, the four laser modules are respectively distributed on the front, back, left and right sides of the fixed sleeve, the axes of the four laser modules are obliquely arranged relative to the fixed sleeve, the laser modules adopt that a projection beam is a straight or cross laser head, the positions of the four laser modules on the first laser positioner relative to the central point of the lower end of the ultrasonic probe are respectively the same as the positions of the central points of the four laser modules on the second laser positioner relative to the lower end of the guide seat, the rays emitted by the left and right laser modules on the first laser positioner are on the same plane, the plane passes through the central point of the lower end of the ultrasonic probe, the rays emitted by the front and back laser modules on the first laser positioner are on the same plane, the plane also passes through the central point of the lower end of the ultrasonic probe, and the rays emitted by the left and right laser modules on the second laser positioner are on the same plane, the plane passes through the center point of the lower end of the guide seat, rays emitted by the front laser module and the rear laser module on the second laser positioner are on the same plane, and the plane also passes through the center point of the lower end of the guide seat.

8. The ultrasound-guided positional scanning system for intraspinal anesthesia of claim 7, wherein: the positioning and scanning system further comprises a positioning application patch used for being applied on the back, the positioning application patch comprises an application body used for being stuck on the skin of the back and a printing layer glued on the application body, a window is formed in the center area of the application body and used for avoiding the contact area of the ultrasonic probe and the skin of the back, and a printing pattern used for marking the projection position of the laser beam is printed on the printing layer.

9. The ultrasound-guided positional scanning system for intraspinal anesthesia of claim 8, wherein: the printing pattern is a plurality of circular ring patterns which are nested concentrically from inside to outside, and each circular ring pattern is marked with a position mark.