CN215079362U - Hepatobiliary puncture device - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to a hepatobiliary duct puncture device, which comprises a main body shell, a needle sleeve and a micro stepping motor, wherein the bottom of the main body shell is movably connected with the needle sleeve, the middle part of the needle sleeve is fixedly connected with a needle shell, the top of the needle shell is fixedly connected with a main rotating rod, the middle part of the main rotating rod is movably connected with a main roller, the outer wall of the main roller is fixedly connected with an anti-skid pad, the bottom of the needle shell is fixedly connected with an auxiliary rotating rod, the top of the main body shell is fixedly connected with a hanging ring, the puncture device can be hung on a hook of an operating table by the hanging ring, the puncture device is prevented from rolling down from the operating table to cause damage, the practicability of the device is improved, a cap can separate a puncture needle from the outside, the puncture needle from being collided to cause damage, the practicability of the device is improved, anti-skid grains can increase the friction force between the needle sleeve and a contact surface, and avoid unnecessary injury of a doctor to a patient caused by skidding when holding the needle sleeve, the practicability of the device is improved.

Description

Hepatobiliary puncture device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a hepatobiliary puncture device.

Background

Obstructive jaundice caused by diseases of liver, gall and pancreas systems is a common disease, and with the progress of minimally invasive technology and instruments, percutaneous bile duct drainage or bile duct stent implantation for treating obstructive jaundice caused by bile duct stenosis and pancreas diseases is widely used in clinic, and diagnosis and treatment are mainly carried out by contrast from percutaneous liver puncture to bile duct radiography.

Present piercing depth need directly pierce the syringe needle internal, danger is great, wherein length and the rate that the syringe needle stretched into, can only rely on doctor's clinical experience to judge by oneself mostly, if doctor's hand is unstable or experience is not enough, then it can lead to the syringe needle to deepen and produce certain threat to the patient very probably, need make the syringe needle keep certain angle with the department of piercing in the prior art simultaneously, thereby make things convenient for the entering of syringe needle, the still shallow doctor of experience is difficult to put out and keep certain angle to pierce, make the puncture degree of difficulty increase, be unfavorable for going on of puncture drainage.

Therefore, how to design a hepatobiliary duct puncture device becomes a problem which needs to be solved currently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hepatobiliary duct piercing depth to the syringe needle that proposes in solving above-mentioned background art is deep easily to be produced the threat, and the syringe needle is difficult to the better human scheduling problem of pricking.

In order to achieve the above object, the utility model provides a following technical scheme: a hepatobiliary duct puncture device comprises a main body shell, a needle sleeve and a micro stepping motor, wherein the bottom of the main body shell is movably connected with the needle sleeve, the middle part of the needle sleeve is fixedly connected with a needle shell, the top of the needle shell is fixedly connected with a main rotating rod, the middle part of the main rotating rod is movably connected with a main roller wheel, the outer wall of the main roller wheel is fixedly connected with an anti-slip pad, the bottom of the needle shell is fixedly connected with an auxiliary rotating rod, the outer wall of the auxiliary rotating rod is movably connected with an auxiliary roller wheel, the inner wall of the needle shell is fixedly connected with a threaded hole, the inner part of the threaded hole is movably connected with a threaded rod, the top end of the threaded rod is fixedly connected with a soft rubber pad, the inner part of the main body shell is fixedly connected with the micro stepping motor, the top end of the micro stepping motor is fixedly connected with a driving gear, and the outer wall of the driving gear is movably connected with a driven gear, the middle part of the driven gear is fixedly connected with a rotating shaft, the top of the driven gear is fixedly connected with a pointer, the right side of the driven gear is fixedly connected with a linkage rod, the outer wall of the main shell is fixedly connected with an angle scale, and the interior of the needle sleeve is movably connected with a puncture needle.

Preferably, the outer wall of the needle sleeve is fixedly connected with anti-skid grains.

Preferably, the bottom end of the needle sleeve is movably connected with a cap.

Preferably, the top of the main body shell is fixedly connected with a hanging ring.

Preferably, the needle cover of main body shell bottom, the needle shell of needle cover middle part, the main bull stick at needle shell top, the main gyro wheel of main bull stick middle part, the slipmat of main gyro wheel outer wall, the vice bull stick of needle shell bottom, the vice gyro wheel of vice bull stick outer wall, the screw hole of needle shell inner wall, the threaded rod of screw hole inside and the flexible glue pad on threaded rod top constitute rolling puncture mechanism jointly.

Preferably, the inclination adjusting mechanism is composed of a micro stepping motor inside the main body shell, a driving gear on the top end of the micro stepping motor, a driven gear on the outer wall of the driving gear, a rotating shaft in the middle of the driven gear, a pointer at the top of the driven gear, a linkage rod on the right side of the driven gear and an angle scale on the outer wall of the main body shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the hepatobiliary duct puncture device, the rolling puncture mechanism is arranged, the puncture needle is firstly punctured into an affected part, then the main roller is rolled to roll on the outer wall of the main rotating rod, the puncture needle can be driven to move towards the right side, the threaded rod can be clockwise screwed into the threaded hole in the puncture preparation stage, so that the soft rubber pad is in contact with and extrudes the puncture needle, the needle head can be slowly punctured into the affected part, the situation that the puncture depth is too deep due to overlarge action amplitude when a doctor punctures the needle head is avoided, meanwhile, the needle head can be fixed in an anti-skidding manner, and the damage caused by sliding collision of the needle head is avoided;

2. this kind of hepatobiliary duct piercing depth, through setting up inclination adjustment mechanism, open miniature step motor and drive the driving gear and rotate, and then drive driven gear and rotate, because driven gear's center is in on the same water flat line with the center of gangbar, so the two pivoted angle keeps unanimous, and when driven gear rotated certain angle, can drive the pointer and rotate certain angle and instruct on the angle scale, can adjust piercing depth to the angle that is fit for the syringe needle to pierce, the precision of puncture has been ensured.

Drawings

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

FIG. 2 is a schematic structural view of the rolling puncture mechanism of the present invention;

FIG. 3 is a schematic side view of the main roller of the present invention;

fig. 4 is a schematic structural diagram of the inclination adjusting mechanism of the present invention.

In the figure: 1. a main body case; 2. puncturing needle; 3. anti-skid lines; 4. capping; 5. hanging a ring; 6. a needle sleeve; 7. a needle housing; 8. a main rotating rod; 9. a main roller; 10. an auxiliary rotating rod; 11. a secondary roller; 12. a threaded hole; 13. a threaded rod; 14. a soft rubber cushion; 15. a micro stepper motor; 16. a driving gear; 17. a driven gear; 18. a rotating shaft; 19. a pointer; 20. a linkage rod; 21. an angle scale; 22. a non-slip mat.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defined as "first", "second" may explicitly or implicitly include one or more such features, in the description of the invention "plurality" means two or more unless explicitly and specifically defined otherwise.

Referring to fig. 1-4, the present invention provides a technical solution: a hepatobiliary puncture device comprises a main body shell 1, a needle sleeve 6 and a micro stepping motor 15, wherein the bottom of the main body shell 1 is movably connected with the needle sleeve 6, the middle part of the needle sleeve 6 is fixedly connected with a needle shell 7, the top of the needle shell 7 is fixedly connected with a main rotating rod 8, the middle part of the main rotating rod 8 is movably connected with a main roller 9, the outer wall of the main roller 9 is fixedly connected with an anti-skid pad 22, the bottom of the needle shell 7 is fixedly connected with an auxiliary rotating rod 10, the outer wall of the auxiliary rotating rod 10 is movably connected with an auxiliary roller 11, the inner wall of the needle shell 7 is fixedly connected with a threaded hole 12, the inner part of the threaded hole 12 is movably connected with a threaded rod 13, the top end of the threaded rod 13 is fixedly connected with a soft rubber pad 14, the interior of the main body shell 1 is fixedly connected with the micro stepping motor 15, the top end of the micro stepping motor 15 is fixedly connected with a driving gear 16, and the outer wall of the driving gear 16 is movably connected with a driven gear 17, the middle part of the driven gear 17 is fixedly connected with a rotating shaft 18, the top of the driven gear 17 is fixedly connected with a pointer 19, the right side of the driven gear 17 is fixedly connected with a linkage rod 20, the outer wall of the main body shell 1 is fixedly connected with an angle scale 21, and the interior of the needle sleeve 6 is movably connected with a puncture needle 2.

Preferably, the outer wall fixedly connected with antiskid line 3 of needle cover 6, the most less and outward appearance of present piercing depth is smooth in volume, skid easily when making the doctor handheld, through setting up antiskid line 3, set up antiskid line 3 on the surface of needle cover 6, because there is unevenness's slot on antiskid line 3 and the surface of needle cover 6, can increase the roughness on needle cover 6 surface, thereby increase the frictional force of needle cover 6 and contact surface, make the doctor be difficult to skid when holding, the practicality of device has been improved.

Preferably, the bottom swing joint of needle cover 6 has block 4, current piercing depth's syringe needle exposes outside usually, because the syringe needle is comparatively sharp, make piercing depth have certain danger, and if make the syringe needle take place to collide with, it can make the syringe needle damage to probably make, through setting up block 4, set up block 4 in the bottom of needle cover 6, when needle cover 6 is inside to put pjncture needle 2, can cover block 4 in the bottom of needle cover 6, make block 4 seal needle cover 6, thereby avoid pjncture needle 2 and external contact, the condition that the syringe needle damaged and the syringe needle wounded has been avoided, the practicality of device has been improved.

Preferably, top fixedly connected with link 5 of main part shell 1, present piercing depth shelves mostly on the operation mesa, because piercing depth is mostly circular, it is certain to roll down from the operation mesa to have, and then cause the piercing depth to damage, through setting up link 5, set up link 5 at the top of main part shell 1, can hang piercing depth through link 5 on the couple of operation mesa when preparing the work, thereby place piercing depth, avoid piercing depth to roll down the operation panel, the practicality of device has been improved.

Preferably, the needle guard 6 at the bottom of the main body shell 1, the needle guiding shell 7 at the middle part of the needle guard 6, the main rotating rod 8 at the top of the needle guiding shell 7, the main roller 9 at the middle part of the main rotating rod 8, the anti-slip pad 22 at the outer wall of the main roller 9, the auxiliary rotating rod 10 at the bottom of the needle guiding shell 7, the auxiliary roller 11 at the outer wall of the auxiliary rotating rod 10, the threaded hole 12 at the inner wall of the needle guiding shell 7, the threaded rod 13 inside the threaded hole 12 and the soft rubber pad 14 at the top end of the threaded rod 13 jointly form a rolling puncture mechanism, the existing puncture device needs to directly puncture the needle into the body, the danger is large, the length and the speed of the needle extending into the body are mostly determined by the clinical experience of doctors, if the hands of the doctors are unstable or lack of experience, the needle is likely to penetrate into the affected part, by arranging the rolling puncture mechanism, when the needle needs to be punctured, according to the contrast visualization of a B-type ultrasonic instrument and an X-ray television, the length required to be inserted can be determined, then the main roller 9 is rolled to roll on the outer wall of the main rotating rod 8, because the anti-slip pad 22 is tightly attached to the outer wall of the main roller 9 and the anti-slip pad 22 is contacted with the puncture needle 2, when the main roller 9 rotates clockwise, the puncture needle 2 can be driven to move to the right side, meanwhile, because the auxiliary roller 11 is contacted with the puncture needle 2, the anti-slip pad 22 can be conducted through the puncture needle 2 and can drive the auxiliary roller 11 to rotate anticlockwise, so that the puncture needle 2 can puncture more easily, the threaded rod 13 can be screwed into the threaded hole 12 clockwise in the puncture preparation stage, so that the soft rubber pad 14 is contacted with and extrudes the puncture needle 2, the puncture needle 2 is prevented from falling off and being damaged, the mechanism can lead the needle head to slowly penetrate into the affected part, and avoid the situation that the puncture depth is too deep due to overlarge action amplitude when a doctor penetrates, the practicality of the device is improved, the needle head can be fixed in an anti-sliding mode, damage caused by sliding collision of the needle head is avoided, and the practicability of the device is improved.

Preferably, the micro stepping motor 15 inside the main body shell 1, the driving gear 16 at the top end of the micro stepping motor 15, the driven gear 17 on the outer wall of the driving gear 16, the rotating shaft 18 in the middle of the driven gear 17, the pointer 19 at the top of the driven gear 17, the linkage rod 20 at the right side of the driven gear 17 and the angle scale 21 on the outer wall of the main body shell 1 jointly form an inclination adjusting mechanism, in the prior art, a needle head needs to keep a certain angle with a punctured part, so that the needle head can conveniently enter, doctors with low experience can not easily swing out and puncture at a certain angle, so that the puncture difficulty is increased, and the puncture drainage is not facilitated, by arranging the inclination adjusting mechanism, when the doctors prepare to puncture the affected part, the micro stepping motor 15 can be opened to drive the driving gear 16 fixedly connected with the micro stepping motor to rotate, and because the driving gear 16 is meshed with the driven gear 17, therefore, the driving gear 16 rotates to drive the driven gear 17 to rotate around the rotating shaft 18, the driven gear 17 is connected with the linkage rod 20, the center of the driven gear 17 is positioned on the same horizontal line with the center of the linkage rod 20, the rotating angle of the linkage rod 20 is consistent with the rotating angle of the driven gear 17, meanwhile, the pointer 19 fixed to the top of the driven gear 17 keeps the same movement trend with the driven gear 17, when the driven gear 17 rotates for a certain angle, the pointer 19 can be driven to rotate for a certain angle and indicate on the angle disc 21, so that the angle between the puncture needle 2 and the horizontal line is adjusted to an ideal puncture angle, the mechanism can adjust the puncture device to an angle suitable for the puncture of the needle head, the puncture accuracy is ensured, the puncture difficulty is reduced, and the practicability of the device is improved.

The working principle is as follows: firstly, by arranging the rolling puncture mechanism, when the affected part needs to be punctured, the puncture needle 2 is firstly punctured into the affected part, the length needing to be punctured can be determined according to the radiography visualization of a B-type ultrasonic instrument and an X-ray television, then the main roller 9 is rolled to roll on the outer wall of the main rotating rod 8, as the outer wall of the main roller 9 is tightly attached with the anti-slip pad 22 and the anti-slip pad 22 is contacted with the puncture needle 2, the puncture needle 2 can be driven to move to the right side when the main roller 9 rotates clockwise, meanwhile, as the auxiliary roller 11 is contacted with the puncture needle 2, the auxiliary roller 11 can be conducted by the puncture needle 2 and driven to rotate anticlockwise, so that the puncture needle 2 punctures more easily, the threaded rod 13 can be screwed into the threaded hole 12 clockwise in the puncture preparation stage, so that the soft rubber pad 14 contacts and extrudes the puncture needle 2, and the puncture needle 2 is prevented from falling off and being damaged, the mechanism can enable the needle head to slowly penetrate into an affected part, avoids the phenomenon that the penetration depth is too deep due to overlarge action amplitude when a doctor penetrates, improves the practicability of the device, can fix the needle head in an anti-skidding manner, avoids the damage caused by the sliding collision of the needle head, and improves the practicability of the device;

then, through setting up the inclination adjustment mechanism, when the doctor is ready to pierce the affected part, the micro stepping motor 15 can be turned on to make it drive the driving gear 16 fixedly connected with it to rotate, because the driving gear 16 is engaged with the driven gear 17, the driving gear 16 can drive the driven gear 17 to rotate around the rotation axis 18 by rotating, because the driven gear 17 is connected with the linkage rod 20 and the center of the driven gear 17 and the center of the linkage rod 20 are on the same horizontal line, the rotating angle of the linkage rod 20 is consistent with the rotating angle of the driven gear 17, meanwhile, the pointer 19 fixed on the top of the driven gear 17 keeps the same movement trend with the driven gear 17, when the driven gear 17 rotates a certain angle, the pointer 19 can be driven to rotate a certain angle and indicate on the angle disc 21, thereby adjusting the angle between the puncture needle 2 and the horizontal line to the ideal puncture angle, the mechanism can adjust the puncture device to a proper angle for the puncture of the needle head, thereby ensuring the puncture precision, reducing the puncture difficulty and improving the practicability of the device;

then, the anti-skid grains 3 are arranged on the surface of the needle sleeve 6, and the roughness of the surface of the needle sleeve 6 can be increased due to the uneven grooves formed on the surfaces of the anti-skid grains 3 and the needle sleeve 6, so that the friction force between the needle sleeve 6 and a contact surface is increased, a doctor is not easy to skid when holding the needle sleeve, and the practicability of the device is improved;

next, by arranging the cap 4 and arranging the cap 4 at the bottom end of the needle sleeve 6, when the puncture needle 2 is arranged in the needle sleeve 6, the cap 4 can be covered at the bottom of the needle sleeve 6, so that the cap 4 seals the needle sleeve 6, the puncture needle 2 is prevented from contacting the outside, the situations that the needle head is damaged and hurts people are avoided, and the practicability of the device is improved;

finally, through setting up link 5, set up link 5 at the top of main part shell 1, can hang the piercing depth through link 5 on the couple of operation mesa when preparing work to place the piercing depth, avoid the piercing depth to roll down the operation panel, improved the practicality of device, this is exactly this kind of hepatobiliary duct piercing depth's theory of operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a hepatobiliary duct puncture device, includes main part shell (1), needle cover (6) and miniature step motor (15), its characterized in that: the bottom of the main body shell (1) is movably connected with a needle sleeve (6), the middle part of the needle sleeve (6) is fixedly connected with a needle shell (7), the top of the needle shell (7) is fixedly connected with a main rotating rod (8), the middle part of the main rotating rod (8) is movably connected with a main roller (9), the outer wall of the main roller (9) is fixedly connected with an anti-slip pad (22), the bottom of the needle shell (7) is fixedly connected with an auxiliary rotating rod (10), the outer wall of the auxiliary rotating rod (10) is movably connected with an auxiliary roller (11), the inner wall of the needle shell (7) is fixedly connected with a threaded hole (12), the inner part of the threaded hole (12) is movably connected with a threaded rod (13), the top end of the threaded rod (13) is fixedly connected with a soft rubber pad (14), and the inner part of the main body shell (1) is fixedly connected with a micro stepping motor (15), the top fixedly connected with driving gear (16) of miniature step motor (15), the outer wall swing joint of driving gear (16) has driven gear (17), the middle part fixedly connected with rotation axis (18) of driven gear (17), the top fixedly connected with pointer (19) of driven gear (17), the right side fixedly connected with gangbar (20) of driven gear (17), the outer wall fixedly connected with angle scale (21) of main part shell (1).

2. A hepatobiliary puncture device according to claim 1, wherein: the interior of the needle sleeve (6) is movably connected with a puncture needle (2).

3. A hepatobiliary puncture device according to claim 1, wherein: the outer wall of the needle sleeve (6) is fixedly connected with anti-skid grains (3).

4. A hepatobiliary puncture device according to claim 1, wherein: the bottom end of the needle sleeve (6) is movably connected with a cap (4).

5. A hepatobiliary puncture device according to claim 1, wherein: the top of the main body shell (1) is fixedly connected with a hanging ring (5).

6. A hepatobiliary puncture device according to claim 1, wherein: the needle cover (6) of main body shell (1) bottom, needle cover (6) middle part's needle shell (7), main bull stick (8) at needle shell (7) top, main gyro wheel (9) of main bull stick (8) middle part, slipmat (22) of main gyro wheel (9) outer wall, vice bull stick (10) of needle shell (7) bottom, vice gyro wheel (11) of vice bull stick (10) outer wall, screw hole (12) of needle shell (7) inner wall, threaded hole (12) inside threaded rod (13) and threaded rod (13) soft rubber mat (14) on top constitute rolling puncture mechanism jointly.

7. A hepatobiliary puncture device according to claim 1, wherein: miniature step motor (15) inside main part shell (1), driving gear (16) on miniature step motor (15) top, driven gear (17) of driving gear (16) outer wall, rotation axis (18) of driven gear (17) middle part, pointer (19) at driven gear (17) top, gangbar (20) on driven gear (17) right side and angle scale (21) of main part shell (1) outer wall constitute inclination adjustment mechanism jointly.

Images