CN209826900U - Fixing device of puncture needle in CT positioning lower shoulder joint radiography examination - Google Patents

Abstract

The utility model relates to a fixing device of puncture needle in CT positioning lower shoulder joint radiography examination, which belongs to the technical field of medical instruments. The fixing device for the puncture needle in CT positioning lower shoulder joint radiographic examination comprises a fixing base, a main supporting rod, an auxiliary supporting rod, a horizontal supporting rod, an angle adjusting rod and a chuck; the fixed base on be equipped with the main tributary vaulting pole that can move about from top to bottom, the one end of main tributary vaulting pole articulates there is the auxiliary stay pole, horizontal support bar one end and auxiliary stay pole joggle, the other end passes through the connecting piece with the one end of angle adjusting lever and is connected, the angle adjusting lever is equipped with the chuck. The utility model provides a fixing device for a puncture needle during shoulder joint radiography examination under CT positioning, which provides a stable support for the puncture needle, improves the success probability of puncture needle insertion and reduces secondary injury; the utility model discloses the equipment is convenient, and is simple to use, and each spare part can be disassembled, is convenient for disinfect and deposit.

Description

Fixing device of puncture needle in CT positioning lower shoulder joint radiography examination

Technical Field

The utility model belongs to the technical field of medical instrument, specific theory relates to a fixing device of pjncture needle in shoulder joint radiography inspection under CT location.

Background

Shoulder joints are the joints with the largest moving range in human joints, so that surrounding muscles, ligaments and joint capsule tissues are kept stable, shoulder joint pain and trauma are common diseases and frequently encountered diseases in musculoskeletal system diseases, which seriously affect the life quality of patients and are increasingly paid attention to. The imaging diagnosis method of shoulder joint mainly includes routine examination such as X-ray, ultrasound, CT and MRI. The display of rotator cuff and labral lesions which are difficult to diagnose has certain limitations, and often leads to missed diagnosis and misdiagnosis. How to accurately display rotator cuff, labral lesions is one of the difficulties for radiologists to diagnose. In recent years, scholars at home and abroad continuously strive to develop and apply the MRI technology, and adopt an imaging method to most effectively detect the pathological changes of shoulder joints such as the rotator cuff, the labrum and the like, and the application and the exploration are continuously carried out at present.

Joint angiography (MRar) is also an imaging examination method in which a certain amount of contrast medium is injected into a punctured joint cavity to fill the joint capsule, thereby displaying normal anatomical structures, variations, and pathological changes in the joint on an image. Shoulder angiography improves the contrast of tissues within the joint, direct angiography expands the joint capsule, enables clear visualization of delicate anatomical structures within the joint, such as the joint capsule, labrum, ligaments, rotator cuff space structures, etc., and helps us to effectively distinguish between normal anatomical variation and disease. Shoulder joint imaging, which is a simple, safe, and less complicated technique, has certain sensitivity in joint disease diagnosis.

If no obvious lesion is found in the routine shoulder joint examination and the clinical symptoms of a patient are obvious, the shoulder joint puncture radiography examination should be performed as early as possible to clearly determine whether the organic lesion exists or not so as to find early treatment, relieve the pain of the patient and protect the normal physiological function of the patient.

Shoulder arthroscopy typically injects a positive contrast agent into the joint cavity to diagnose pathologies such as the glenoid labrum, joint capsule and surrounding soft tissues. The shoulder joint radiography puncture person path selection generally has two types, namely a front puncture and a back puncture; after the contrast puncture needle head enters the joint cavity and the puncture is successfully observed by using the CT, 13-15 ml of prepared contrast agent is injected into the joint cavity, so that the contrast agent is filled in the whole joint cavity and the puncture needle is pulled out.

Currently, a shoulder joint radiographic examination is usually performed in front of the patient, the forearm of the patient is usually required to be rotated outwards in order to fully expose the shoulder joint cavity in the process of the puncture, then the puncture needle is inserted into the joint cavity at a vertical angle, and a prepared contrast medium to be injected is injected into the joint cavity. The problem of supination of the forearm of a patient during this procedure has been solved by proprietary forearm supination fixation devices. The problem that the needle insertion angle is vertical needs to be solved in the puncture process, the problem that the needle insertion angle of a young doctor who is unskilled in operation is difficult to master in the past puncture, the needle insertion angle is easy to deviate left and right or front and back, secondary damage is caused, and the puncture needle is easy to drop out again or be unstable when being connected with an injector after penetrating into a joint cavity, so that multiple times of damage is formed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a fixing device of puncture needle in CT location lower shoulder joint radiography examination. The utility model provides a fixing device for puncture needle during shoulder joint radiography examination under CT positioning, which provides an accurate direction and stable support for the puncture needle, thereby improving the success probability of puncture needle insertion and reducing secondary injury; the utility model discloses the equipment is convenient, and is simple to use, and each spare part can be disassembled, is convenient for disinfect and deposit.

In order to achieve the purpose, the utility model is implemented according to the following technical scheme:

the fixing device for the puncture needle in CT positioning lower shoulder joint radiographic examination comprises a fixing base, a main supporting rod, an auxiliary supporting rod, a horizontal supporting rod, an angle adjusting rod and a chuck; the fixed base on be equipped with the main tributary vaulting pole that can move about from top to bottom, the one end of main tributary vaulting pole articulates there is the auxiliary stay pole, horizontal support bar one end and auxiliary stay pole joggle, the other end passes through the connecting piece with the one end of angle adjusting lever and is connected, the angle adjusting lever is equipped with the chuck.

Preferably, the fixing base comprises a fastening knob and a fixing rod; the fixing base on be equipped with main tributary vaulting pole assorted vertical through-hole I that runs through fixing base, be equipped with on the fixing base with I mutually perpendicular of through-hole and the screw hole of intercommunication each other, threaded hole is equipped with the fastening knob that matches each other, fixing base one side is equipped with the centre gripping groove, threaded connection has the dead lever on the inner wall in centre gripping groove.

Preferably, the fixing rod penetrates through the inner wall of the clamping groove, a pressing piece is arranged at one end, located in the clamping groove, of the fixing rod, and a force applying rod is movably arranged at the other end of the fixing rod.

Preferably, the articulated shaft of main tributary vaulting pole and vice bracing piece be the screw form, screw thread section and vice bracing piece threaded connection, polished rod section and the clearance fit of hosting vaulting pole.

Preferably, one end of the horizontal support rod connected with the auxiliary support rod is provided with a fastening screw I.

Preferably, the angle adjusting rod is provided with a through hole II matched with the chuck, the chuck is installed in the through hole II, and the free end of the angle adjusting rod is provided with a fastening screw II.

Preferably, the connecting piece comprises a rotating part and a fixing part, and the rotating part is in threaded connection with the fixing part.

The utility model has the advantages that:

the utility model provides a fixing device for puncture needle during shoulder joint radiography examination under CT positioning, which provides an accurate direction and stable support for the puncture needle, thereby improving the success probability of puncture needle insertion and reducing secondary injury; the utility model discloses the equipment is convenient, and is simple to use, and each spare part can be disassembled, is convenient for disinfect and deposit.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the fixing base of the present invention;

FIG. 3 is a sectional view of the hinge position of the main support rod and the auxiliary support rod of the present invention;

fig. 4 is a cross-sectional view of the connector of the present invention;

fig. 5 is a semi-sectional view of the drill chuck of the utility model.

In the figures 1-5, 1-fixed base, 2-main supporting rod, 3-auxiliary supporting rod, 4-horizontal supporting rod, 5-angle adjusting rod, 6-chuck, 7-fastening knob, 8-fixing rod, 9-through hole I, 10-threaded hole, 11-clamping groove, 12-pressing sheet, 13-reinforcing rod, 14-through hole II, 15-fastening screw I, 16-fastening screw II, 17-fixing part, 18-rotating part and 19-through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in fig. 1-5, the fixing device for a puncture needle in CT-positioned lower shoulder joint radiographic examination includes a fixing base 1, a main support rod 2, an auxiliary support rod 3, a horizontal support rod 4, an angle adjusting rod 5, and a chuck 6; the puncture safety device is characterized in that a main support rod 2 capable of moving up and down is arranged on the fixed base 1, a vertical through hole I9 which is matched with the main support rod 2 and penetrates through the fixed base 1 is formed in the fixed base 1, the main support rod 2 is in clearance fit with the through hole I9, and the main support rod 2 is adjusted upwards or downwards to adjust the puncture position height. Be equipped with on fixed baseplate 1 with I9 mutually perpendicular and the screw hole 10 of intercommunication each other of through-hole, be equipped with the fastening knob 7 of mutual matching in the screw hole 10, fastening knob 7 is similar with the screw, and the screw thread section matches with screw hole 10, and through screwing fastening knob 7, make fastening knob 7 lock main tributary vaulting pole 2, the relative position of fixed main tributary vaulting pole 2 and fixed baseplate 1. A clamping groove 11 is formed in one side of the fixed base 1, a fixing rod 8 is in threaded connection with the inner wall of the clamping groove 11, the clamping groove 11 is clamped on a CT scanning bed, the fixing rod 8 is screwed to enable the clamping groove 11 to clamp the bed, the fixed base 1 is firmly connected with the bed, the device is prevented from shaking, and the success rate of puncture is improved; dead lever 8 runs through centre gripping groove 11 inner wall, stretches out centre gripping groove 11 with the one end of dead lever 8, is convenient for rotate dead lever 8, and dead lever 8 is located centre gripping inslot 11 one end and is equipped with compressing tightly piece 12, increases the area of contact of 8 terminal surfaces of dead lever and bed platform, makes fixed baseplate 1 be connected more tightly with the bed platform, and the other end activity is equipped with plus pole 13, is convenient for rotate dead lever 8.

The one end of main tributary vaulting pole 2 articulates there is vice bracing piece 3, main tributary vaulting pole 2 is the screw form with the articulated shaft of vice bracing piece 3, screw thread section and 3 threaded connection of vice bracing piece, polished rod section and host's vaulting pole clearance fit, rotate vice bracing piece 3 around the articulated shaft as required, the position of adjustment pjncture needle, the articulated shaft of screwing, fixed vice bracing piece 3, for the pjncture needle provides the outrigger, finish using, the articulated shaft of screwing out, can pull down vice bracing piece 3, be convenient for store.

4 one end of horizontal support bar and 3 joggles of auxiliary stay bar, make things convenient for the dismouting, do a rabbet with the one end of horizontal support bar 4, the tenon is made to the one end of auxiliary stay bar 3, mutually support both, it is firm to make horizontal support bar 4 be connected with auxiliary stay bar 3, the one end that horizontal support bar 4 and auxiliary stay bar 3 are connected is equipped with fastening screw I15, establish a groove that communicates with the rabbet in the one end of horizontal support bar 4, through fastening screw I15 of screwing, make the rabbet diameter reduce, consolidate being connected of horizontal support bar 4 and auxiliary stay bar 3.

The other end passes through the connecting piece with the one end of angle adjusting lever 5 and is connected, and the connecting piece includes rotating part 18, fixed part 17, rotating part 18 and fixed part 17 pass through threaded connection, can unpack angle adjusting lever 5 and horizontal support bar 5 apart when not using and deposit, be convenient for store, rotating part 18 and 5 clearance fit of angle adjusting lever, fixed part 17 and 4 clearance fit of horizontal support bar, the angle of inserting the needle that the pjncture needle was adjusted to accessible rotation angle adjusting lever 5.

The angle adjusting rod 5 is provided with a chuck 6, the chuck 6 adopts an electric drill self-locking chuck, a conversion connecting rod of the electric drill self-locking chuck is removed, a through hole 19 which is matched with the puncture needle in size is drilled from the tail part of the chuck, the puncture needle can penetrate through the chuck 6, and meanwhile, the puncture needle is ensured to be centered. Be equipped with on the angle adjusting lever 5 with chuck 6 assorted through-hole II 14, chuck 6 is installed in through-hole II 14, 5 free ends of angle adjusting lever are equipped with fastening screw II 16, the free end of the regulation pole of angle is established a groove that communicates with through-hole II 14, through fastening screw II 16 of screwing, reduce the diameter of through-hole II 14, make the installation in through-hole II 14 that chuck 6 can be firm, after the puncture needle puncture is successful, rotatory chuck 6 makes it press from both sides tight puncture needle, effectively avoided the puncture needle to rock, improve the success rate of shoulder joint intracavity puncture.

The utility model discloses the working process: clamping groove 11 is clamped on a CT scanning bed, a puncture needle is installed in a chuck 6, a fixing rod 8 is screwed through a force applying rod 13, a fixed base 1 is made to clamp a bed, the height of a main support rod 2 is adjusted, the height of the puncture needle is adjusted, a fastening knob 7 is screwed, the position of the main support rod 2 is fixed, an auxiliary support rod 3 is rotated, the position of the puncture needle is finely adjusted, a hinge shaft is screwed, the position of the auxiliary support rod 3 is fixed, a rotation angle adjusting rod 5 is used for adjusting the needle feeding angle of the puncture needle, the chuck 6 is loosened, the puncture needle is inserted into a patient body, the chuck 6 is screwed, and.

Finally, it is noted that the above preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims; the size of the attached figure is irrelevant to the specific real object, and the size of the real object can be changed at will.

Claims (7)

1. A fixing device of a puncture needle in CT positioning shoulder joint radiography examination is characterized in that: comprises a fixed base (1), a main supporting rod (2), an auxiliary supporting rod (3), a horizontal supporting rod (4), an angle adjusting rod (5) and a chuck (6); the fixed base (1) on be equipped with main tributary vaulting pole (2) that can move about from top to bottom, the one end of main tributary vaulting pole (2) articulates there is vice bracing piece (3), horizontal support bar (4) one end and vice bracing piece (3) joggle, the other end passes through the connecting piece with the one end of angle adjusting lever (5) and is connected, be equipped with chuck (6) on angle adjusting lever (5).

2. The apparatus of claim 1, wherein the needle holder is adapted for use in a CT positioning shoulder angiography procedure, wherein: fixed baseplate (1) on be equipped with main tributary vaulting pole (2) assorted vertical through-hole I (9) that run through fixed baseplate (1), be equipped with on fixed baseplate (1) with through-hole I (9) mutually perpendicular and screw hole (10) that communicate each other, be equipped with fastening knob (7) that matches each other in screw hole (10), fixed baseplate (1) one side is equipped with centre gripping groove (11), threaded connection has dead lever (8) on the inner wall of centre gripping groove (11).

3. The apparatus of claim 2, wherein the needle holder is adapted to be used in a CT-positioning shoulder angiography examination, and comprises: the fixing rod (8) penetrates through the inner wall of the clamping groove (11), one end of the fixing rod (8) located in the clamping groove (11) is provided with a pressing sheet (12), and the other end of the fixing rod is movably provided with a force applying rod (13).

4. The apparatus of claim 1, wherein the needle holder is adapted for use in a CT positioning shoulder angiography procedure, wherein: the articulated shaft of main tributary vaulting pole (2) and vice bracing piece (3) be the screw form, screw thread section and vice bracing piece (3) threaded connection, polished rod section and main tributary vaulting pole (2) clearance fit.

5. The apparatus of claim 1, wherein the needle holder is adapted for use in a CT positioning shoulder angiography procedure, wherein: and a fastening screw I (15) is arranged at one end of the horizontal supporting rod (4) connected with the auxiliary supporting rod (3).

6. The apparatus of claim 1, wherein the needle holder is adapted for use in a CT positioning shoulder angiography procedure, wherein: the angle adjusting rod (5) is provided with a through hole II (14) matched with the chuck (6), the chuck (6) is installed in the through hole II (14), and the free end of the angle adjusting rod (5) is provided with a fastening screw II (16).

7. The apparatus of claim 1, wherein the needle holder is adapted for use in a CT positioning shoulder angiography procedure, wherein: the connecting piece include rotation portion (18), fixed part (17), rotation portion (18) pass through threaded connection with fixed part (17).