CN218832779U

CN218832779U - Compound injection device for positioning spinal column segment

Info

Publication number: CN218832779U
Application number: CN202222973044.5U
Authority: CN
Inventors: 齐曾鑫; 吴雪海; 臧迪; 郑锐哲; 王哲; 许泽宇
Original assignee: Huashan Hospital of Fudan University
Current assignee: Huashan Hospital of Fudan University
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-04-11
Anticipated expiration: 2032-11-09

Abstract

The utility model relates to the technical field of medical equipment, and discloses a composite injection device for positioning spinal segments, which comprises a clip, wherein the outer side of the surface of the clip is fixedly sleeved with a connecting and mounting block, the end part of the connecting and mounting block is fixedly connected with a fixed mounting concave block, the inner side of the fixed mounting concave block is movably connected with a movable sleeve through a positioning shaft, and the inner side of the movable sleeve is movably connected with a telescopic rod; the utility model discloses a connection installation piece, the concave piece of fixed mounting, movable sleeve, telescopic link and connection positioning mechanism that are equipped with can change at the relative position between clip and the syringe needle, can come to adjust the position of connecting the positioning disk according to the positive lateral position piece of line backbone X line to can carry out accurate location to the position and handle, can prevent the deviation that the position change brought effectively, cause positioning error in the art, enlarge the operation incision, increase the patient damage, lead to the operation failure.

Description

Compound injection device for positioning spinal column segment

Technical Field

The utility model relates to the technical field of medical equipment, more specifically relate to a compound injection device for spinal column segment location.

Background

In the spinal surgery process, in order to locate spinal focus segments, a spinal locating plate needs to be shot before a surgery, a clip is specifically needed for body surface location, and an injector needle is used for injecting pigment (Meilan) for primary location of spinal spinous processes. During specific operation, firstly, a paper clip is pasted on a midline part of the back of a patient by using an adhesive tape, then, the examination of the positive side position plate of the spine X-ray is carried out for primarily positioning a target spine segment, then, a syringe needle head is inserted into the position of the paper clip, the needle tip is pushed to the surface of a bone (spinous process), the positive side position plate of the spine X-ray is rechecked again to determine the position of the target spine segment, if the position is ideal, the position of the needle head needs to be kept unchanged, pigment (Meilan) is injected, then, the needle head is pulled out, and the position of the paper clip is ensured to be unchanged. In the operation, the position of the incision on the body surface is determined through a ground clip pasted by an adhesive tape, and the position of the target segment of the spine is determined through pigment (methylene blue).

However, in the actual operation process, the relative position of the injection needle and the clip is changed due to the change of the posture during the process of correcting the lateral position sheet by the X-ray of the spinal column, which causes the deviation between the actual position after the injection of the pigment (methylene blue) and the position during the X-ray shooting, causes the positioning error in the operation, enlarges the operation incision, increases the injury of the patient, and even fails the operation.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a compound injection device for spinal segmental positioning to solve the problems presented in the above-mentioned background art.

The utility model provides a following technical scheme: the composite injection device for positioning the spinal column segment comprises a clip, wherein a connecting and mounting block is fixedly sleeved on the outer side of the surface of the clip, a fixed mounting concave block is fixedly connected to the end part of the connecting and mounting block, a movable sleeve is movably connected to the inner side of the fixed mounting concave block through a positioning shaft, a telescopic rod is movably connected to the inner side of the movable sleeve, a connecting and positioning disc is fixedly connected to the end part of the telescopic rod, a fixed limiting guide groove is formed in the surface of the movable sleeve, and a connecting and positioning mechanism is fixedly connected to the surface of the movable sleeve;

furthermore, the end positioning shaft of the fixed mounting concave block is fixedly connected with a connection indicator needle, and the top of the connection mounting block and the fixed mounting concave block is fixedly connected with an angle measuring scale.

Furthermore, the connecting and positioning mechanism comprises a fixed mounting block, a fixed threaded sleeve is fixedly connected to one side of the fixed mounting block, a movable screw rod is movably connected to the inside of the fixed mounting block and the fixed threaded sleeve, a connecting rotary disc is fixedly connected to one end of the movable screw rod, a connecting friction disc is fixedly connected to the other end of the movable screw rod, the movable screw rod is driven to rotate by rotating the connecting rotary disc and the connecting friction disc, the movable screw rod can move on the fixed threaded sleeve, the connecting friction disc is driven to move, the connecting friction disc and the movable sleeve can be extruded mutually, and therefore the positions among the fixed mounting block, the telescopic rod and the movable sleeve can be fixed, the distance of the detection position can be guaranteed to be within the distance range that the movable sleeve drives the telescopic rod to deflect, and therefore the determination can be carried out.

Furthermore, the end part of the fixed mounting block is mutually attached to the inner side of the fixed limiting guide groove, the end part of the fixed mounting block can move on the inner side of the fixed limiting guide groove through the mutual attachment between the fixed mounting block and the fixed limiting guide groove, and meanwhile, the telescopic rod can be limited, so that the telescopic rod is prevented from being separated from the inner part of the movable sleeve to the outer part.

Furthermore, the movable screw rod is movably connected with the fixed threaded sleeve through threads, the movable screw rod is slidably connected with the fixed mounting block, the movable screw rod can move inside the fixed threaded sleeve when rotating inside the fixed threaded sleeve through the threaded connection between the fixed threaded sleeve and the movable screw rod, and the movable screw rod can smoothly move inside the fixed mounting block through the sliding connection between the movable screw rod and the fixed mounting block.

Furthermore, the injection hole has been seted up to the inside of connecting the positioning disk, can fix a position the injection more accurately through the injection hole of connecting the positioning disk inside, prevents to take place the deviation.

Furthermore, the top fixedly connected with limit sleeve who connects the positioning disk can restrict the tip position of syringe through limit sleeve for can be more accurate when injecting, prevent the deviation.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a connection installation piece, the concave piece of fixed mounting, movable sleeve, telescopic link and connection positioning mechanism that are equipped with can change at the relative position between clip and the syringe needle, can come to adjust the position of connecting the positioning disk according to the positive lateral position piece of line backbone X line to can carry out accurate location to the position and handle, can prevent the deviation that the position change brought effectively, cause positioning error in the art, enlarge the operation incision, increase the patient damage, lead to the operation failure.

2. The utility model discloses a connection pointer and angular surveying chi that are equipped with, can be more accurate according to the positive side piece of line backbone X line, come to adjust the angle of movable sleeve and telescopic link to can add the position of confirming target backbone festival section accurately, thereby can improve the success rate of operation, reduce patient's damage, also can be favorable to the recovery of patient's postoperative.

Drawings

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

Fig. 2 is an exploded schematic view of the present invention.

Fig. 3 is an enlarged schematic structural diagram of a in fig. 1 according to the present invention.

Fig. 4 is an enlarged schematic structural diagram of the position B in fig. 2 according to the present invention.

The reference signs are: 1. a clip; 2. connecting the mounting blocks; 3. fixedly mounting the concave block; 4. a movable sleeve; 5. fixing a limiting guide groove; 6. a telescopic rod; 7. connecting a positioning plate; 8. a limiting sleeve; 9. connecting a positioning mechanism; 10. connecting an indicating needle; 11. an angle measuring scale; 12. fixing the mounting block; 13. fixing the threaded sleeve; 14. a movable screw; 15. connecting the rotary table; 16. and connecting the friction disc.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and the forms of the structures described in the following embodiments are merely examples, and the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.

Referring to fig. 1-4, the utility model provides a compound injection device for positioning spinal column segment, including clip 1, the surface outside of clip 1 is fixedly sleeved with connection installation block 2, the end part of connection installation block 2 is fixedly connected with fixed mounting concave block 3, the inside of fixed mounting concave block 3 is movably connected with movable sleeve 4 through a positioning shaft, the inside of movable sleeve 4 is movably connected with telescopic link 6, the end part of telescopic link 6 is fixedly connected with connection positioning disk 7, the surface of movable sleeve 4 is provided with fixed spacing guide slot 5, the surface of movable sleeve 4 is fixedly connected with connection positioning mechanism 9;

wherein, the tip location axle fixedly connected with of the concave piece 3 of fixed mounting connects pointer 10, connects the top fixedly connected with angular surveying chi 11 of installation piece 2 and the concave piece 3 of fixed mounting.

Wherein, connect positioning mechanism 9 and include fixed mounting piece 12, one side fixedly connected with fixed threaded sleeve 13 of fixed mounting piece 12, the inside swing joint of fixed mounting piece 12 and fixed threaded sleeve 13 has movable screw 14, the one end fixedly connected with of activity screw 14 connects carousel 15, the other end fixedly connected with of activity screw 14 connects friction disc 16, be convenient for telescopic link 6 in the inboard outside of activity sleeve 4 in-process that removes, can drive fixed mounting piece 12, fixed threaded sleeve 13, movable screw 14, connect carousel 15 and connect friction disc 16 and remove, after confirming the length that telescopic link 6 located, can rotate connection carousel 15, drive movable screw 14 and connect friction disc 16 and rotate, make movable screw 14 can remove in the inboard of fixed threaded sleeve 13, it removes to drive and connect friction disc 16, make and connect friction disc 16 and can extrude each other between the surface of movable sleeve 4, thereby can fix the position between movable sleeve 4 and telescopic link 6, it is more accurate to adjust, and easy operation is swift.

Wherein, the tip of fixed mounting piece 12 and the inboard of fixed spacing guide slot 5 are laminated each other, and when being convenient for telescopic link 6 moved fixed mounting piece 12, can make fixed mounting piece 12 move in the inboard of fixed spacing guide slot 5 steadily, and fixed spacing guide slot 5 also can restrict the displacement of fixed mounting piece 12 simultaneously, prevents that telescopic link 6 can follow the inside of movable sleeve 4 and break away from convenient operation.

Wherein, through the mutual swing joint of screw thread between movable screw 14 and the fixed thread sleeve 13, mutual sliding connection between movable screw 14 and the fixed mounting piece 12, can make movable screw 14 move in the inside of fixed thread sleeve 13 when rotating under the interact of screw thread between the movable screw 14 of being convenient for and the fixed thread sleeve 13, sliding connection between movable screw 14 and the fixed mounting piece 12 simultaneously, make movable screw 14 can move in the inside of fixed mounting piece 12 more smoothly, high durability and convenient use.

Wherein, connect the inside of positioning disk 7 and seted up the injection hole, be convenient for inject through connecting all injection holes of seting up in positioning disk 7 inside, improve the precision.

Wherein, the top fixedly connected with stop sleeve 8 of connecting positioning disk 7, the stop sleeve 8 of being convenient for can restrict fixedly to the tip of syringe, also can improve the precision of injection equally.

The utility model discloses a theory of operation: in the using process, the clip 1 is fixed at the central line position of the back of a patient through an adhesive tape, then the X-ray positive side position sheet of the line spine of the patient is checked, the target spine segment is preliminarily positioned, then an injector needle is inserted into an injection hole in the connecting positioning disc 7, the needle point is positioned on the surface of a bone, the X-ray positive side position sheet of the line spine is rechecked again, if the position between the needle head and the clip 1 changes relatively due to the change of the posture, the movable sleeve 4 and the telescopic rod 6 are deflected on the inner side of the fixed mounting concave block 3, then the X-ray positive side position sheet of the line spine is referred, so that the axes of the telescopic rod 6 and the movable sleeve 4 face the position of the needle head, then the telescopic rod 6 moves towards the outside in the movable sleeve 4, so that the top of the needle head is just positioned in the injection hole in the connecting positioning disc 7, the connecting turntable 15 is rotated to drive the movable screw 14 and the connecting friction disc 16 to rotate, at the moment, the movable screw 14 can move on the inner side of the fixed threaded sleeve 13, the connecting friction disc 16 is pushed to move, the connecting friction disc 16 and the movable sleeve 4 are extruded, the position between the movable sleeve 4 and the telescopic rod 6 can be fixed, then, an injector is inserted into the inner side of the limiting sleeve 8 and is connected and fixed with the needle head for marking, in the operation, the angle and the length of the movable sleeve 4 and the telescopic rod 6 can be rapidly connected and connected between the clip 1 and the clip 1, so that the operation incision can be rapidly determined, the positioning accuracy can be effectively improved, the operation incision can be prevented from being enlarged due to errors, the injury of a patient is increased, and the operation failure can be seriously caused, the structure is simple, the operation is convenient, and the position can be quickly positioned.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Compound injection device for positioning of the spinal column segment, comprising a clip (1), characterized in that: the fixed connection installation piece (2) that has cup jointed in the surperficial outside of paper clip (1), the tip fixedly connected with fixed mounting concave brick (3) of connection installation piece (2), the inboard of the concave brick of fixed mounting (3) has movable sleeve (4) through location axle swing joint, the inboard swing joint of movable sleeve (4) has telescopic link (6), the tip fixedly connected with of telescopic link (6) connects positioning disk (7), fixed spacing guide slot (5) have been seted up on the surface of movable sleeve (4), positioning mechanism (9) are connected to the fixed surface of movable sleeve (4).

2. Composite injection device for spinal segmental positioning according to claim 1, characterized in that: the end positioning shaft of the fixed mounting concave block (3) is fixedly connected with a connecting indicator needle (10), and the top of the connecting mounting block (2) and the fixed mounting concave block (3) is fixedly connected with an angle measuring scale (11).

3. Composite injection device for spinal segmental positioning according to claim 1, characterized in that: the connecting and positioning mechanism (9) comprises a fixed mounting block (12), a fixed threaded sleeve (13) is fixedly connected to one side of the fixed mounting block (12), a movable screw (14) is movably connected to the inside of the fixed mounting block (12) and the fixed threaded sleeve (13), a connecting rotary disc (15) is fixedly connected to one end of the movable screw (14), and a connecting friction disc (16) is fixedly connected to the other end of the movable screw (14).

4. A composite injection device for spinal segmental positioning according to claim 3, characterized in that: the end part of the fixed mounting block (12) is attached to the inner side of the fixed limiting guide groove (5).

5. A composite injection device for spinal segmental positioning according to claim 3, characterized in that: the movable screw (14) is movably connected with the fixed threaded sleeve (13) through threads, and the movable screw (14) is slidably connected with the fixed mounting block (12).

6. A multiple injection device for spinal segmental positioning according to claim 1, characterized in that: an injection hole is formed in the connecting positioning plate (7).

7. A multiple injection device for spinal segmental positioning according to claim 1, characterized in that: the top end of the connecting positioning plate (7) is fixedly connected with a limiting sleeve (8).