CN110882043B - Directional puncture sampling device for treating liver diseases - Google Patents

Directional puncture sampling device for treating liver diseases Download PDF

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Publication number
CN110882043B
CN110882043B CN201911225761.6A CN201911225761A CN110882043B CN 110882043 B CN110882043 B CN 110882043B CN 201911225761 A CN201911225761 A CN 201911225761A CN 110882043 B CN110882043 B CN 110882043B
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needle
gear
mounting groove
puncture
counting
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CN110882043A (en
Inventor
张红宇
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First Affiliated Hospital of Zhengzhou University
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First Affiliated Hospital of Zhengzhou University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3403Needle locating or guiding means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0233Pointed or sharp biopsy instruments
    • A61B10/0266Pointed or sharp biopsy instruments means for severing sample
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/80Implements for cleaning or washing the skin of surgeons or patients
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M35/00Devices for applying media, e.g. remedies, on the human body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3403Needle locating or guiding means
    • A61B2017/3405Needle locating or guiding means using mechanical guide means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3403Needle locating or guiding means
    • A61B2017/3413Needle locating or guiding means guided by ultrasound
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B2017/3454Details of tips

Abstract

The invention provides directional puncture sampling equipment for treating liver diseases, which solves the problems of lower positioning precision and lower puncture efficiency in the prior art; the problem of inaccurate positioning and accurate needle inserting depth. Including the telescopic bracket, last connection fixed ring on the telescopic bracket, go up fixed ring below and connect fixed ring down, it has outer tooth ring gear and inner tooth ring gear to go up to rotate between fixed ring and the lower fixed ring, outer tooth ring gear coaxial arrangement has one-way wheel, install first gear on the lower fixed ring, first gear next door meshes respectively has the second gear, second gear and inner tooth ring gear meshing, it has the probe mounting groove to open on the inner tooth ring gear, probe mounting groove both sides are rotated there are first dog and second dog, install the arc clamp plate in the probe mounting groove, install ultrasonic transducer in the probe mounting groove, the pjncture needle is installed to one-way wheel rear side. The invention can realize the position conversion among the ultrasonic probe, the disinfection bottle, the anesthesia needle and the puncture needle; the liver and puncture position can be more accurately positioned.

Description

Directional puncture sampling device for treating liver diseases
Technical Field
The invention relates to the technical field of medical instruments, in particular to a directional puncture sampling device for treating liver diseases.
Background
Puncture, a commonly used medical operating term, is a diagnosis and treatment technique in which a puncture needle is inserted into a body cavity to extract secretions for testing, gas or contrast agents are injected into the body cavity to perform contrast examination, or medicines are injected into the body cavity, and the purpose of puncture is blood extraction for testing, blood transfusion, fluid infusion, catheterization for angiography and the like.
Liver puncture biopsy is a pathological examination in which a liver tissue is aspirated by a liver puncture needle. The method is widely applied to diagnosis of diseases such as hepatitis, fatty liver, liver cancer and the like in clinic, is an examination method which can directly know pathological changes of liver tissues and can make objective and accurate diagnosis, and has clinical significance in liver puncture biopsy: is beneficial to the differential diagnosis of various liver diseases; understanding the degree and activity of liver lesions; providing a diagnosis of the etiology of various types of viral hepatitis; finding early, quiescent or compensated cirrhosis; identifying the nature and cause of jaundice; as the evaluation index of chronic hepatitis disease condition and prognosis; and diagnostic treatment can be performed.
At present, most of the operation steps of liver puncture biopsy are that the position of a puncture point is checked and confirmed and marked through B-ultrasonic and other image instruments, then disinfection and anesthesia are carried out on the puncture point, then puncture is carried out in cooperation with B-ultrasonic, and a doctor penetrates through the skin at the puncture point selected by the B-ultrasonic through a puncture needle and rapidly pulls out the needle after entering liver parenchyma.
However, the above-mentioned method has the following disadvantages:
1. the positioning and puncture of the liver are both carried out by holding the ultrasonic probe by medical personnel for positioning and fixing, and then the anesthetic injection and puncture are carried out, which are finished by cooperation of a plurality of people, so that the operation is complicated, the positioning precision is low, and the puncture efficiency is low;
2. because the conventional B-ultrasonic guidance is not real-time, after the B-ultrasonic scanner gives the numerical values of the angle and the depth of the puncture needle, an operator still needs to judge according to experience and operate by holding the puncture needle by hand, and the needle insertion depth cannot be accurately positioned and determined;
3. at present, operators basically maintain the operation of the puncture needle by hanging the puncture needle in the air, the requirement on operators is high, and the intra-abdominal organs of patients can be damaged by slight shaking, so that secondary damage is caused to the patients;
4. because the puncture needle stays in the liver for a short time, the failure rate of the existing puncture needle is high when the puncture needle is used for patients with liver fibrosis.
Accordingly, the present invention is directed to a directional puncture sampling apparatus for treating liver diseases to solve the above problems.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the directional puncture sampling device for treating the liver diseases, which effectively solves the problems that the prior art needs multiple persons to cooperate and finish, is more complicated, has lower positioning precision and lower puncture efficiency; the needle insertion depth cannot be accurately positioned and determined; slight shaking can damage the internal organs of the abdomen of the patient and cause secondary damage to the patient; the prior puncture needle has the problem of high failure rate when being used for patients with liver fibrosis.
The utility model provides a directional puncture sampling device of treatment liver disease, includes telescopic bracket, its characterized in that, telescopic bracket upper end is connected with fixed ring, fixed ring under going up fixed ring's below through bolted connection, go up fixed ring and install external tooth ring gear and internal tooth ring gear down with the axle center rotation between the fixed ring, external tooth ring gear coaxial arrangement has one-way wheel, rotate on the fixed ring down and install a plurality of first gears with external tooth ring gear meshing, a plurality of the first gear next door rotates respectively to be meshed has the second gear, a plurality of the second gear meshes with the internal tooth ring gear, it has the probe mounting groove to open on the left outer profile surface of internal tooth ring gear, first dog and second dog are installed in the rotation of both sides of probe mounting groove opening part, slidable mounting has two first fixture block and the second fixture block that are located first left side and second dog right side respectively on the internal tooth ring gear, reset springs are respectively arranged between the first fixture block and the second fixture block and the internal gear ring, a compression spring is arranged in the probe mounting groove, an arc-shaped pressing plate is fixedly arranged at the other end of the compression spring, an ultrasonic probe is arranged among the arc-shaped pressing plate, the first stop block and the second stop block, a disinfection bottle is rotatably arranged on the outer contour surface at the front side of the internal gear ring, an anesthesia needle is arranged on the outer contour surface at the right side of the internal gear ring, and a puncture needle is arranged on the inner wall at the rear side of the one-way wheel;
a puncture needle mounting groove is formed in the inner wall of the rear side of the one-way wheel, a penetrating rotating block is rotatably mounted in the puncture needle mounting groove, a sliding block located below the rotating block is slidably mounted in the puncture needle mounting groove back and forth, circular puncture needle sliding grooves are respectively penetrated through the rotating block and the sliding block, and puncture needles are respectively slid in the two puncture needle sliding grooves;
the puncture needle comprises an outer needle, wherein the bottom of the outer needle is rotatably provided with four quarter needle points, four folding blocks are integrally connected to the inner wall of the quarter needle points respectively, an inner needle is slidably arranged in the outer needle, four vertical folding chutes which are in sliding fit with the folding blocks are uniformly distributed on the outer contour surface of the inner needle, and handles are respectively arranged at the top ends of the outer needle and the inner needle
Preferably, dog reset torsion springs are respectively installed between the first dog and the second dog and the internal tooth gear ring, the first dog and the second dog are respectively and integrally connected with a latch matched with the first clamping block and the second clamping block, and the arc-shaped pressing plate, the first dog and the second dog are provided with anti-slip pads.
Preferably, it has the disinfection bottle mounting groove to open on the outer profile surface of internal tooth ring gear front side, rotate respectively on the inner wall of disinfection bottle mounting groove both sides and install solid fixed sliding block, the disinfection bottle about both ends be equipped with respectively with two the solid fixed sliding groove of solid fixed sliding block cooperation installation, two install slider reset torsion spring between solid fixed sliding block and the internal tooth ring gear respectively.
Preferably, the bottleneck department threaded connection of disinfection bottle has the check valve bottle lid, the lower extreme threaded connection of check valve bottle lid has the aseptic cotton mounting groove, install the aseptic cotton in the aseptic cotton mounting groove.
Preferably, it has the anesthesia needle mounting groove to open on the outer profile surface on internal tooth ring gear right side, slidable mounting has curved push pedal, two respectively on the inner wall of anesthesia needle mounting groove both sides install the push pedal spring between push pedal and the anesthesia needle mounting groove both sides inner wall respectively, two install the anesthesia needle between the push pedal.
Preferably, the upper end of outer needle is fixed with vertical count rack, rotate on the top surface of turning block and install the count gear, fixed mounting has the count case on the top surface of turning block, it has the count spout to open on the top surface of count case, the count lead screw coaxial with the count gear is installed to the count incasement rotation, the count pointer that passes the count spout is installed to the last screw thread of count lead screw.
According to the invention, through the matching of the external gear ring, the one-way wheel and the internal gear ring, the position conversion among the ultrasonic probe, the disinfection bottle, the anesthesia needle and the puncture needle can be realized; through the matching of the ultrasonic probe fixed on the internal tooth gear ring and the puncture needle fixed on the one-way wheel, the operation by one person can be realized, and the liver and the puncture position can be more accurately positioned; meanwhile, the counting device is additionally arranged, the needle inserting depth of the puncture needle can be displayed when the puncture needle enters a human body, compared with the traditional puncture needle, the puncture needle disclosed by the invention can adapt to any patient with liver diseases, the liver tissue can be accurately grabbed through folding of four quarter needle points, and the success rate of liver sampling is improved.
Drawings
Fig. 1 is a perspective view of the present invention.
FIG. 2 is a schematic top perspective view of the present invention.
Fig. 3 is a bottom perspective view of the present invention.
FIG. 4 is a schematic top view of the present invention.
FIG. 5 is a perspective view of the probe mounting slot of the present invention.
FIG. 6 is a perspective view of the anesthetic needle mounting groove of the present invention.
FIG. 7 is a perspective view of the mounting groove of the disinfection bottle of the present invention.
Fig. 8 is a perspective view of the mounting groove of the puncture needle of the present invention.
Fig. 9 is a perspective view of the counter gear of the present invention.
FIG. 10 is a perspective view of the sterilization bottle of the present invention.
Fig. 11 is a perspective view of the puncture needle of the present invention.
FIG. 12 is a perspective view of the inner needle of the present invention.
Fig. 13 is a perspective view of a quarter of a needle tip of the present invention.
FIG. 14 is a perspective view of the closure chute of the present invention.
Fig. 15 is a sectional perspective view of the one-quarter needle tip of the present invention after closing.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 15. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The invention relates to directional puncture sampling equipment for treating liver diseases, which comprises a telescopic bracket 1, wherein the telescopic bracket 1 provides a support foundation for a subsequent structure, and is characterized in that the upper end of the telescopic bracket 1 is connected with an upper fixed ring 2, the top surface of the upper fixed ring 2 is fixed on the telescopic bracket 1, a bolt connection mode or other common fixing modes can be adopted, the lower part of the upper fixed ring 2 is connected with a lower fixed ring 3 through a bolt, the upper fixed ring 2 and the lower fixed ring 3 are coaxially arranged, a certain distance is reserved between the upper fixed ring 2 and the lower fixed ring 3, an external tooth gear ring 4 and an internal tooth gear ring 5 are coaxially and rotatably arranged between the upper fixed ring 2 and the lower fixed ring 3, the external tooth gear ring 4 and the internal tooth gear ring 5 can rotate between the upper fixed ring 2 and the lower fixed ring 3, the external diameter of the external tooth gear ring 4 is smaller than the internal diameter of the internal tooth gear ring 5, the outer gear ring 4 is coaxially provided with a one-way gear 401, the outer diameter of the one-way gear 401 is smaller than the inner diameter of the outer gear ring 4, the outer gear ring 4 can drive the one-way gear 401 to rotate clockwise, the one-way gear 401 does not rotate when the outer gear ring 4 rotates counterclockwise, and here, as shown in the attached drawings, the lower fixed ring 3 is rotatably provided with a plurality of first gears 6 engaged with the outer gear ring 4, the first gears 6 can drive the outer gear ring 4 to rotate when rotating, a plurality of second gears 7 are respectively rotatably engaged beside the first gears 6, the second gears 7 can drive the first gears 6 to rotate, a plurality of second gears 7 are engaged with the inner gear ring 5, the inner gear ring 5 can drive the second gears 7 to rotate, and the rotation direction of the outer gear ring 4 is the same as the rotation direction of the inner gear ring 5 through the second gears 7 and the first gears 6, the probe installation groove 8 is formed in the outer contour surface on the left side of the internal gear ring 5, the installation block of the probe installation groove 8 can be fixedly formed in the outer contour surface of the internal gear ring 5, the installation block can be fixed by bolts or other methods, the first stop 801 and the second stop 802 are rotatably installed on two sides of the opening of the probe installation groove 8, the first stop 801 and the second stop 802 can swing at the opening of the probe installation groove 8 respectively, the first fixture block 803 and the second fixture block 804 which are respectively located on the left side of the first stop 801 and the right side of the second stop 802 are slidably installed on the internal gear ring 5, when the first stop 801 swings to the left side and the second stop 802 swings to the right, the first fixture block 803 can clamp the first stop 801, the second fixture block 804 can clamp the second stop 802, so that the first fixture block 803 and the second fixture block 804 can only swing into the probe installation groove 8, and when the first fixture block 803 slides, when the second fixture block 804 slides rightwards, the first fixture block 801 can swing leftwards, the second fixture block 802 can swing rightwards, the return springs 9 are respectively arranged between the first fixture block 803 and the second fixture block 804 and the internal tooth ring gear 5, when the first fixture block 803 and the second fixture block 804 slide leftwards or rightwards, the first fixture block 803 and the second fixture block 804 can be reset through the return springs 9, the compression springs 10 are arranged in the probe installation grooves 8, the arc-shaped pressing plate 11 is fixedly arranged at the other end of the compression springs 10, the arc-shaped pressing plate 11 can slide towards the probe installation grooves 8 under the action of external force, meanwhile, the compression springs 10 are compressed to accumulate force, the ultrasonic probes 12 are arranged among the arc-shaped pressing plate 11, the first fixture block 801 and the second fixture block 802, when the ultrasonic probes 12 are arranged, the first fixture block 801 or the second fixture block 802 are pressed towards the probe installation grooves 8 by using the handle of the ultrasonic, at this time, the arc pressing plate 11 is pushed by the first stopper 801 or the second stopper 802 to the inside of the probe mounting groove 8, when the ultrasonic probe 12 enters the probe mounting groove 8, the first stopper 801 or the second stopper 802 is swung outward and reset, at this time, the arc pressing plate 11 pushes the ultrasonic probe 12 outward under the action of the compression spring 10, the first stopper 801 and the second stopper 802 abut against the ultrasonic probe 12, the ultrasonic probe 12 is mounted, when the ultrasonic probe 12 is dismounted, the first stopper 803 or the second stopper 804 only needs to slide leftwards or rightwards, the first stopper 801 or the second stopper 802 can swing outward, the ultrasonic probe 12 can be taken out from the probe mounting groove 8, the disinfection bottle 13 is rotatably mounted on the outer contour surface at the front side of the internal gear ring 5, the disinfection bottle mounting block can be fixed on the outer contour surface at the front side of the internal gear ring 5, the disinfection bottle 13 is mounted on the disinfection bottle mounting block and can swing on the disinfection bottle mounting block, an anesthesia needle 14 is arranged on the outer contour surface on the right side of the internal gear ring 5, an anesthesia needle mounting block can be fixed on the outer contour surface on the right side of the internal gear ring 5, the anesthesia needle 14 is arranged on the anesthesia needle mounting block, a puncture needle 15 is arranged on the inner wall on the rear side of the one-way wheel 401, the puncture needle mounting block can be fixed on the inner wall on the rear side of the one-way wheel 401, the puncture needle 15 is arranged on the puncture needle mounting block, the position of the ultrasonic probe 12 is an initial position, when the skin of a patient is to be disinfected after the examination of the ultrasonic probe 12, the internal gear ring 5 only needs to be rotated clockwise by 90 degrees, the disinfection bottle 13 can be moved to the initial position of the ultrasonic probe 12, at the moment, the external gear ring 4 also drives the one-way wheel 401 to rotate clockwise by 90 degrees, the puncture needle 15 reaches one side of the initial position of the anesthesia needle 14, the external gear ring 4 also drives the one-way wheel 401 to rotate clockwise 270 degrees, at this time, the position of the puncture needle 15 is located on the side of the initial position of the ultrasonic probe 12, at this time, the position of the ultrasonic probe 12 is located on the initial position of the disinfection bottle 13, if the internal gear ring 5 continues to rotate clockwise, the ultrasonic probe 12 cannot be located on the same side as the puncture needle 15, at this time, the internal gear ring 5 should rotate counterclockwise to return to the initial position of the ultrasonic probe 12, meanwhile, the external gear ring 4 also rotates counterclockwise, the one-way wheel 401 does not rotate, the position of the puncture needle 15 still remains unchanged, and finally, the ultrasonic probe 12 can be located on the same side as;
fixed pjncture needle installation piece on the inner wall of one-way wheel 401 rear side, it has pjncture needle mounting groove 23 to open on the pjncture needle installation piece, pjncture needle mounting groove 23 internal rotation is installed and is passed turning block 24, and turning block 24 can rotate at pjncture needle mounting groove 23, slidable mounting has the sliding block 25 that is located the turning block 24 below around in pjncture needle mounting groove 23, sliding block 25 can slide around in pjncture needle mounting groove 23, it has circular shape pjncture needle spout 26, two to run through respectively on turning block 24 and the sliding block 25 it has pjncture needle 15 to slide in pjncture needle spout 26, and pjncture needle 15 reciprocates along two pjncture needle spouts 26, can adjust the angle of pjncture.
The puncture needle 15 comprises an outer needle 27, the outer needle 27 is a hollow cylinder, the bottom of the outer needle 27 is rotatably provided with four quarter needle points 28, the four quarter needle points 28 can swing at the bottom of the outer needle 27 respectively, when the four quarter needle points 28 are folded, a needle point with a hollow middle part is formed, as shown in the attached drawing, when the four quarter needle points 28 are folded in the liver, the four quarter needle points 28 can grab liver tissues, and can achieve a high-efficiency sampling effect for patients suffering from hepatic fibrosis and cirrhosis, the inner walls of the four quarter needle points 28 are respectively and integrally connected with folding blocks 29, an inner needle 30 is arranged in the outer needle 27 in a sliding manner, the inner needle 30 can slide up and down in the outer needle 27, the outer surface of the inner needle 30 is tightly attached to the inner wall of the outer needle 27, four vertical folding chutes 31 which are in sliding fit with the four folding blocks 29 are uniformly distributed on the outer contour surface of the inner needle 30, the four folding blocks 29 are positioned in the four folding chutes 31, the folding blocks 29 prop against the bottom of the folding chutes 31, so that the four quarter needle points 28 cannot be unfolded outwards, when the inner needle 30 is lifted upwards, the needle point of the inner needle 30 enters the outer needle 27, the four folding blocks 29 are lifted upwards simultaneously on the side surface below the folding chutes 31, the four folding blocks 29 drive the four quarter needle points 28 to be folded towards the middle part, the top ends of the outer needle 27 and the inner needle 30 are respectively provided with a handle, and the handles on the outer needle 27 and the inner needle 30 are convenient for an operator to operate and use.
In the second embodiment, on the basis of the first embodiment, a stopper return torsion spring is respectively installed between the first stopper 801 and the second stopper 802 and the internal gear ring 5, and after the first stopper 801 or the second stopper 802 swings to a certain extent, the first stopper 801 and the second stopper 802 can return by the stopper return torsion spring, the first stopper 801 and the second stopper 802 are respectively and integrally connected with a latch 16 matched with the first latch 803 and the second latch 804, when the ultrasonic probe 12 is pushed against by the arc-shaped pressing plate 11, the first stopper 801 and the second stopper 802 can be clamped by the first latch 803 and the second latch 804, so that the two cannot swing outwards continuously, and the ultrasonic probe 12 is fixed, and the arc-shaped pressing plate 11, the first stopper 801 and the second stopper 802 are provided with anti-slip pads, when the ultrasonic probe 12 is fixed among the three, the anti-slip pads on the three can further fix the ultrasonic probe 12, the ultrasonic probe 12 is placed to slide or rock.
Third embodiment, on the basis of first embodiment, fixed disinfection bottle installation piece on the outer profile face of internal tooth ring gear 5 front side, it has disinfection bottle mounting groove 17 to open on the disinfection bottle installation piece, it installs fixed slider 18 to rotate respectively on the inner wall of disinfection bottle mounting groove 17 both sides, two fixed slider 18 can swing on the both sides wall of disinfection bottle mounting groove 17, disinfection bottle 13 about both ends be equipped with respectively with two fixed runner 19 of fixed slider 18 cooperation installation, disinfection bottle 13 can be fixed on two fixed slider 18 through the fixed runner 19 of both sides, makes disinfection bottle 13 can swing in disinfection bottle mounting groove 17, and during the disinfection, the operator swings disinfection bottle 13 and can disinfect patient's health, two install slider reset torsional spring between fixed slider 18 and the internal tooth ring gear 5 respectively, and the operator finishes to patient's health disinfection, the disinfection bottle 13 can be reset under the action of the slider reset torsion spring by loosening the disinfection bottle 13.
Fourth embodiment, on the basis of the third embodiment, the bottleneck of the disinfection bottle 13 is screwed with a check valve bottle cap 301, the disinfection bottle 13 can be made of plastic or made of other soft materials, a check ball valve is installed in the check valve bottle cap 301, when the bottleneck of the disinfection bottle 13 is downward, the disinfectant in the disinfection bottle 13 does not flow out, only when the operator squeezes the body of the disinfection bottle 13, the disinfectant can push open the check ball valve to flow out, the lower end of the check valve bottle cap 301 is screwed with a disinfection cotton mounting groove 302, the disinfection cotton mounting groove 302 is communicated with the check valve bottle cap 301, disinfection cotton is installed in the disinfection cotton mounting groove 302, the disinfection cotton is disposable disinfection cotton, the disinfection cotton can be disassembled and replaced, when the operator squeezes the body of the disinfection bottle 13, the disinfectant can enter the disinfection cotton mounting groove 302 through the check valve bottle cap 301 to soak the disinfection cotton, then the operator can shake the disinfection bottle to disinfect.
Fifth embodiment, on the basis of the first embodiment, an anesthetic needle mounting block is fixed on the outer contour surface on the right side of the internal gear ring 5, an anesthetic needle mounting groove 20 is formed in the anesthetic needle mounting block, arc-shaped push plates 21 are respectively slidably mounted on the inner walls on the two sides of the anesthetic needle mounting groove 20, square retractable holes are respectively formed in the inner walls on the two sides of the anesthetic needle mounting groove 20, one end of each of the two push plates 21 is integrally connected with a square prism and respectively slidably disposed in one retractable hole, push plate springs 22 are respectively mounted between the two push plates 21 and the inner walls on the two sides of the anesthetic needle mounting groove 20, an anesthetic needle 14 is mounted between the two push plates 21, when the anesthetic needle 14 is mounted, the anesthetic needle 14 is only required to be inserted between the two push plates 21 from above, the two push plates 21 are separated by the anesthetic needle 14 and respectively slide in the retractable holes, under the reactive force, the two push plates 21 press the anesthetic needle 14, thereby fixing the anesthetic needle 14.
Sixth embodiment, on the basis of the first embodiment, a vertical counting rack 32 is fixed at the upper end of the outer needle 27, the length of the counting rack 32 is smaller than half of the length of the outer needle 27, a counting gear 33 is rotatably installed on the top surface of the rotating block 24, the counting gear 33 can be meshed with the counting rack 32, when the puncture needle 15 just contacts the skin surface of the patient, the counting rack 32 can be meshed with the counting gear 33, after the puncture needle 15 enters the body, the counting rack 32 starts to drive the counting gear 33 to rotate, a counting box 34 is fixedly installed on the top surface of the rotating block 24, a counting chute 35 is opened on the top surface of the counting box 34, scales are rotatably arranged on two sides of the counting chute 35, a counting screw rod 36 coaxial with the counting gear 33 is installed on the counting box 34, the counting screw rod 36 can rotate synchronously with the counting gear 33, a counting pointer 37 penetrating through the counting chute 35 is installed on the counting screw rod 36 in a, the sleeve is installed to the screw thread on the count lead screw 36, and count pointer 37 body coupling is on the sleeve to count pointer 37 passes count spout 35 and can slide at count spout 35, and the sleeve can drive count pointer 37 and move on count lead screw 36 when count lead screw 36 rotates, and count pointer 37 can the audio-visual degree of depth that reflects pjncture needle 15 and get into the human body.
A use method of the puncture needle 15 is characterized in that the specific use method is that the needle point of the inner needle 30 is pushed out of the bottom of the outer needle 27, the tip parts of four quarter outer needles 28 are outwards opened and tightly attached to the inner needle 30, then the whole puncture needle 15 is inserted into two puncture needle chutes 26, the angle of the puncture needle 15 is adjusted through a rotating block 24 and a sliding block 25 to find a puncture mark point on the body of a patient, then the outer needle 27 and the inner needle 30 are simultaneously pressed downwards to penetrate the skin of the patient to reach the liver by matching with the ultrasonic probe 12, after the puncture needle 15 enters the liver, the inner needle 30 is lifted upwards, the needle point of the inner needle 30 slides upwards to the inner needle 27, liver tissue enters the middle parts of the four quarter needle points 28, and then the four folding blocks 29 on the inner needle 30 continuously slide upwards after the bottom parts of the four folding chutes 30 meet, the four quarter needle points 28 can be folded towards the middle, liver tissues inside the quarter needle points are cut off, then the whole puncture needle 15 is pulled out of the body of a patient, when the liver tissues inside the four quarter needle points 28 are taken out, the inner needle 30 is pushed downwards, and the four quarter needle points 28 are spread by the inner needle 30 and the liver tissues are pushed out.
According to the invention, through the matching of the external gear ring, the one-way wheel and the internal gear ring, the position conversion among the ultrasonic probe, the disinfection bottle, the anesthesia needle and the puncture needle can be realized; through the matching of the ultrasonic probe fixed on the internal tooth gear ring and the puncture needle fixed on the one-way wheel, the operation by one person can be realized, and the liver and the puncture position can be more accurately positioned; meanwhile, the counting device is additionally arranged, the needle inserting depth of the puncture needle can be displayed when the puncture needle enters a human body, compared with the traditional puncture needle, the puncture needle disclosed by the invention can adapt to any patient with liver diseases, the liver tissue can be accurately grabbed through folding of four quarter needle points, and the success rate of liver sampling is improved.

Claims (6)

1. The utility model provides a directional puncture sampling device of treatment liver disease, includes telescopic bracket (1), its characterized in that, telescopic bracket (1) upper end is connected with retaining ring (2), there is retaining ring (3) down through bolted connection in the below of going up retaining ring (2), go up retaining ring (2) and install external tooth ring gear (4) and internal tooth ring gear (5) with the axle center rotation between retaining ring (3) down, external tooth ring gear (4) coaxial arrangement has one-way gear (401), rotate on retaining ring (3) down and install a plurality of first gear (6) with external tooth ring gear (4) meshing, it is a plurality of first gear (6) next door rotates the meshing respectively has second gear (7), and is a plurality of second gear (7) and internal tooth ring gear (5) meshing, it has probe mounting groove (8) to open on the left outer profile of internal tooth ring gear (5), the ultrasonic anesthesia apparatus is characterized in that a first stop block (801) and a second stop block (802) are rotatably mounted on two sides of an opening of the probe mounting groove (8), a second stop block (804) located on the left side of the first stop block (801) and the right side of the second stop block (802) is slidably mounted on the internal tooth gear ring (5), reset springs (9) are respectively mounted between the first stop block (803) and the second stop block (804) and the internal tooth gear ring (5), compression springs (10) are mounted in the probe mounting groove (8), an arc-shaped pressing plate (11) is fixedly mounted at the other end of each compression spring (10), ultrasonic probes (12) are mounted among the arc-shaped pressing plate (11), the first stop block (801) and the second stop block (802), a disinfection bottle (13) is rotatably mounted on an outer contour surface of the front side of the internal tooth gear ring (5), and an anesthesia needle (14) is mounted on an outer contour surface of the right side of, a puncture needle (15) is arranged on the inner wall of the rear side of the one-way wheel (401);
a puncture needle mounting groove (23) is formed in the inner wall of the rear side of the one-way wheel (401), a rotating block (24) is rotatably mounted in the puncture needle mounting groove (23), a sliding block (25) located below the rotating block (24) is slidably mounted in the puncture needle mounting groove (23) in the front and back direction, circular puncture needle sliding grooves (26) are respectively penetrated through the rotating block (24) and the sliding block (25), and puncture needles (15) are slidably mounted in the two puncture needle sliding grooves (26);
pjncture needle (15), including outer needle (27), the bottom of outer needle (27) is rotated and is installed four quarter needle points (28), four respectively an organic whole is connected with and closes up piece (29) on the inner wall of quarter needle point (28), slidable mounting has interior needle (30) in outer needle (27), evenly distributed has four vertical and with four on the outer profile surface of interior needle (30) close up piece (29) sliding fit's closure spout (31), the handle is installed respectively on the top of outer needle (27) and interior needle (30).
2. The directional puncture sampling device for treating liver diseases according to claim 1, wherein stopper return torsion springs are respectively installed between the first stopper (801) and the second stopper (802) and the internal gear ring (5), the first stopper (801) and the second stopper (802) are respectively and integrally connected with latch teeth (16) matched with the first latch block (803) and the second latch block (804), and anti-slip pads are installed on the arc-shaped pressing plate (11), the first stopper (801) and the second stopper (802).
3. The directional puncture sampling device for treating liver diseases according to claim 1, wherein the outer contour surface of the front side of the internal tooth gear ring (5) is provided with a disinfection bottle mounting groove (17), the inner walls of the two sides of the disinfection bottle mounting groove (17) are respectively provided with a fixed sliding block (18) in a rotating way, the left end and the right end of the disinfection bottle (13) are respectively provided with a fixed sliding groove (19) which is matched and mounted with the two fixed sliding blocks (18), and a sliding block reset torsion spring is respectively arranged between the two fixed sliding blocks (18) and the internal tooth gear ring (5).
4. The directional puncture sampling device for liver disease treatment according to claim 3, wherein the mouth of the disinfection bottle (13) is threadedly connected with a one-way valve bottle cap (301), the lower end of the one-way valve bottle cap (301) is threadedly connected with a disinfection cotton mounting groove (302), and disinfection cotton is mounted in the disinfection cotton mounting groove (302).
5. The directional puncture sampling device for treating liver diseases according to claim 1, wherein the outer contour surface on the right side of the internal tooth ring gear (5) is provided with an anesthetic needle mounting groove (20), the inner walls on both sides of the anesthetic needle mounting groove (20) are respectively provided with an arc-shaped push plate (21) in a sliding manner, a push plate spring (22) is respectively arranged between the two push plates (21) and the inner walls on both sides of the anesthetic needle mounting groove (20), and an anesthetic needle (14) is arranged between the two push plates (21).
6. The directional puncture sampling device for treating liver diseases according to claim 1, wherein a vertical counting rack (32) is fixed at the upper end of the outer needle (27), a counting gear (33) is rotatably installed on the top surface of the rotating block (24), a counting box (34) is fixedly installed on the top surface of the rotating block (24), a counting chute (35) is formed in the top surface of the counting box (34), a counting screw rod (36) coaxial with the counting gear (33) is rotatably installed in the counting box (34), and a counting pointer (37) penetrating through the counting chute (35) is threadedly installed on the counting screw rod (36).
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