阅读说明：本技术 一种治疗肝病的定向穿刺取样设备 (Directional puncture sampling device for treating liver diseases ) 是由 张红宇 于 2019-12-04 设计创作，主要内容包括：本发明提供一种治疗肝病的定向穿刺取样设备,解决了现有技术中定位精度较低,穿刺效率较低；不能精确定位及精确进针深度的问题。包括伸缩支架,伸缩支架上连接上固定圆环,上固定圆环下方连接下固定圆环,上固定圆环和下固定圆环之间转动有外齿齿圈和内齿齿圈,外齿齿圈同轴安装有单向轮,下固定圆环上安装有第一齿轮,第一齿轮旁边分别啮合有第二齿轮,第二齿轮与内齿齿圈啮合,内齿齿圈上开有探头安装槽,探头安装槽两侧转动有第一挡块和第二挡块,探头安装槽内安装有弧形压板,探头安装槽内安装有超声波探头,单向轮后侧安装有穿刺针。本发明能够实现超声波探头、消毒瓶、麻醉针、穿刺针之间的位置转换；能够更准确定位肝脏和穿刺位置。(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.)

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 (5) 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 endoscope comprises a probe mounting groove (8), wherein 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), an inner tooth gear ring (5) is slidably mounted with two first fixture blocks (803) and two second fixture blocks (804) which are respectively positioned on the left side of the first stop block (801) and the right side of the second stop block (802), reset springs (9) are respectively mounted between the first fixture blocks (803) and the second fixture blocks (804) and the inner 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), an ultrasonic probe (12) is 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 on the front side of the inner tooth gear ring (5), and an anesthesia needle (14, and a puncture needle (15) is arranged on the inner wall of the rear side of the one-way wheel (401).

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. A directional puncture sampling device for treating liver diseases according to claim 3, wherein the mouth of the sterilizing bottle (3) 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 sterilizing cotton mounting groove (302), and the sterilizing cotton is mounted in the sterilizing 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 the inner wall of the rear side of the one-way wheel (401) is provided with a puncture needle mounting groove (23), the puncture needle mounting groove (23) is rotatably provided with a penetration rotating block (24), the puncture needle mounting groove (23) is internally provided with a sliding block (25) which is positioned below the rotating block (24) in a front-back sliding manner, the rotating block (24) and the sliding block (25) are respectively provided with a circular puncture needle sliding groove (26) in a penetrating manner, and the puncture needles (15) are arranged in the two puncture needle sliding grooves (26) in a sliding manner.

7. The directional puncture sampling device for treating the liver diseases according to claim 5, wherein the puncture needle (15) comprises an outer needle (27), the bottom of the outer needle (27) is rotatably provided with four quarter needle points (28), the inner walls of the four quarter needle points (28) are respectively and integrally connected with a folding block (29), the outer needle (27) is internally and slidably provided with an inner needle (30), 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), and handles are respectively arranged at the top ends of the outer needle (27) and the inner needle (30).

8. The directional puncture sampling device for treating liver diseases according to claim 7, 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).

9. A use method of a puncture needle (15) is characterized in that the specific use method is that the needle point of an inner needle (30) is pushed out of the bottom of an 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), a puncture mark point on the body of a patient is found, then an ultrasonic probe (12) is matched to simultaneously press the outer needle (27) and the inner needle (30) downwards to penetrate the skin of the patient to reach the liver, when the puncture needle (15) enters the liver, the inner needle (30) is lifted upwards, the needle point of the inner needle (30) slides upwards into the outer needle (27), and then the liver tissue enters the middle parts of the four quarter needle points (28), when the bottoms of the four folding chutes (30) on the inner needle (30) touch the four folding blocks (29) and then continuously slide upwards, the four quarter needle points (28) can be folded towards the middle, liver tissues inside the four quarter needle points are cut off, then the whole puncture needle (15) is pulled out of the body of a patient, and 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 pushed out.

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, install reset spring between first fixture block and the second fixture block and the internal tooth ring gear respectively, install compression spring in the probe mounting groove, compression spring's other end fixed mounting has the arc clamp plate, install ultrasonic transducer between arc clamp plate, first dog and the second dog, rotate on the outer profile surface of the front side of internal tooth ring gear and install the disinfection bottle, install the anesthesia needle on the outer profile surface on the right side of internal tooth ring gear, install the pjncture needle on the inner wall of one-way wheel rear side.

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, 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 in the front and back direction, circular puncture needle sliding grooves are respectively formed in the rotating block and the sliding block in a penetrating mode, and puncture needles are arranged in the puncture needle sliding grooves in a sliding mode.

Preferably, the puncture needle comprises an outer needle, the bottom of the outer needle is rotatably provided with four quarter needle points, four of the quarter needle points are respectively and integrally connected with a folding block on the inner wall, 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, 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.

A use method of a puncture needle is characterized in that the specific use method is that the needle point of an inner needle is pushed out of the bottom of an outer needle, the tip parts of four quarter outer needles are outwards opened and tightly attached to the inner needle, then the whole puncture needle is inserted into two puncture needle chutes, the angle of the puncture needle is adjusted through a rotating block and a sliding block, a puncture mark point on the body of a patient is found, then the outer needle and the inner needle are simultaneously pressed downwards to penetrate the skin of the patient to reach the liver by matching with an ultrasonic probe, after the puncture needle enters the liver, the inner needle is lifted upwards, the needle point of the inner needle slides upwards to the inner needle, liver tissues enter the middle parts of the four quarter needle points, and when the bottoms of the four folding chutes on the inner needle touch the four folding blocks and then continuously slide upwards, the four quarter needle points can be folded towards the middle, and the liver tissue in the needle is cut off, then the whole puncture needle is pulled out of the body of the patient, and when the liver tissue in the four quarter needle points is taken out, the inner needle is pushed downwards, and the four quarter needle points are spread by the inner needle and 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.

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.