CN114343800A - An ultrasonic guided puncture catheter drainage device - Google Patents

Abstract

The invention relates to an ultrasonic guide puncture catheterization drainage device, which prevents a patient from moving in a puncture process by adopting a detachable arc-shaped clamping plate structure in a body clamping device, a guide rail on a bed body is provided with a frame body matched with the guide rail, and the frame body realizes the positioning and fixing of an ultrasonic probe through a three-dimensional adjusting device and an angle adjusting device, so that the hands of medical personnel are liberated, then the puncture needle, a guide pipe and an expansion pipe are driven by two groups of matched driving discs to complete the work of advancing and puncturing, meanwhile, the advancing speed is controllably adjusted by using a speed adjusting device, a handheld driving device realizes the input work of the positive direction and the negative direction of power transmission by using the transmission characteristic of a one-way gear, the invention can effectively liberate the medical personnel, is suitable for both a one-step puncture method and a two-step puncture method, and has uniform puncture process and stable advancing angle and is not easy to deviate, the efficiency of puncture and the accurate degree of puncture have been improved, have avoided simultaneously passing and the phenomenon of violence puncture.

Description

An ultrasonic guided puncture catheter drainage device

technical field

The invention belongs to the technical field of medical equipment, and in particular relates to an ultrasonic-guided puncture catheter placement and drainage device.

Background technique

Ultrasound-guided puncture and catheterization technology is widely used in our current medical system. Ultrasound-guided puncture and catheterization is one of the important components of interventional ultrasound. It can guide the puncture needle into the patient's body for interventional therapy. In short, it is to perform the puncture operation of the target lesion in real time by cooperating with the ultrasound image, so that the drainage tube after puncture is indwelled. The puncture and drainage is a very commonly used clinical treatment method , especially in the current B-guided or CT-guided puncture catheter drainage. The clinical use of puncture and drainage is most common in the following three situations or diseases: 1. It is mainly seen in the infection of pleural effusion, or the symptoms of dyspnea caused by a large amount of pleural effusion. Usually, the intracostal space puncture and catheterization are used for drainage. 2. It should be seen in post-hepatitis cirrhosis and the increased intra-abdominal pressure caused by a large amount of ascites. Paracentesis is used to release the ascites to relieve the symptoms of intra-abdominal hypertension. 3. Mainly seen in abdominal surgery, such as residual effusion in the abdominal cavity after hepatobiliary, gastrointestinal or appendix suppuration, and even secondary bacterial infection, forming abscesses and causing chills, fever, and even poisonous blood symptoms. The puncture and drainage under the guidance of B-ultrasound is used to drain the pus so as to achieve the purpose of cure and avoid reoperation.

Existing puncture and catheterization techniques generally use "one-step method" and "two-step method" for ultrasound-guided puncture and catheterization work. The inner sleeve of the guide tube is equipped with a metal inner sleeve and an inner core, so that the puncture can be performed directly. After puncturing the lesion, the metal inner sleeve and the inner core can be pulled out. The "two-step method" is when the patient needs The puncture position is performed through the puncture needle. After puncturing to the designated position, the needle core in the puncture needle is removed, and then the metal guide wire is placed, and then the puncture needle is removed, and then the dilation tube is inserted along the guide wire, and the dilation is withdrawn. After the tube, set the drainage tube and the metal inner sleeve. It should be noted that the inner core does not need to be installed, and then the assembled drainage tube is inserted into the lesion along the guide wire. After reaching the lesion, the guide wire is pulled out. At the same time, the inner core can be taken out to complete the puncture and tube placement, and then the drainage tube is fixedly connected to the skin through a fixer to prevent the drainage tube from being pulled out.

In the process of cooperating with ultrasound guidance, the existing puncture catheter drainage technology often requires the user to constantly support the ultrasound probe to ensure accurate puncture during ultrasound imaging, which often requires the cooperation of two medical staff, one person constantly holding the ultrasound probe. , another person came to perform puncture and drainage work, so we developed a device for ultrasonic puncture and drainage based on this problem. After determining the position of the ultrasonic probe, it was fixed, thus liberating the medical staff, and at the same time allowing the The medical staff in charge of the puncture can perform the puncture and catheterization work with the cooperation of the fact that the images are generated. At the same time, during the process of artificial puncture by the medical staff, after selecting the puncture route and puncture angle, there may be violent puncture or excessive puncture. In different puncture situations, the requirements for the speed of the puncture footage are also different. The closer to the lesion area, the medical staff are required to slow down the puncture speed to prevent penetration or damage to surrounding tissues and blood vessels. At the same time, due to the uncertainty of human operation, there will be artificial subjective deviations in the determined puncture route, which will lead to changes in the puncture route, which will cause unavoidable damage and loss to the patient. In order to ensure the accuracy of puncture To solve the above problems, we developed an ultrasonic guided puncture catheter drainage device to solve the above problems.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide an ultrasonic guided puncture catheter placement and drainage device to solve the problem in the prior art that the ultrasonic probe cannot be fixed during the puncture process. , and the problems of violent puncturing, over-penetration, and changes in puncturing lines during the artificial puncturing process, and the puncturing speed is too fast or too slow.

The above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

An ultrasonic guided puncture catheter placement and drainage device, comprising a bed, characterized in that a body clamping device is connected to the bed of the bed, and the body clamping device realizes clamping and fixing of a patient's body, and the bed is Lateral guide rails are arranged on the front and rear sides of the guide rail, and an ultrasonic guiding device is arranged horizontally on the guide rail;

The ultrasonic guiding device comprises a frame body that is slidably connected to the guide rail, the frame body is longitudinally screwed with a lateral positioning pin matched with the guide rail, a vertical sleeve is installed on the upper end of the frame body, and the vertical sleeve is installed on the upper end of the frame body. A vertical telescopic rod is vertically slidably fitted in the cylinder, a vertical positioning pin matched with the vertical telescopic rod is longitudinally threaded on the vertical sleeve, and a rectangular hole is opened on the upper end of the vertical telescopic rod, and the rectangular A rectangular cylinder is longitudinally slidably fitted in the hole, and the upper end of the vertical telescopic rod is vertically threaded with a longitudinal positioning pin matched with the rectangular cylinder. An L-shaped support rod placed in the rectangular cylinder is slidably fitted between the elongated holes. One end of the support rod is driven by the reciprocating mechanism installed on the upper end of the rectangular cylinder to drive the support rod to move in the direction of the elongated hole, and the other end of the support rod The ball is hinged with a connecting rod, and the position where the connecting rod and the support rod are hinged is provided with an electromagnet and an armature that cooperate with each other. The other end of the connecting rod can be detachably installed with an ultrasonic probe. Ultrasound display;

It also includes a constant-speed needle entry and exit device used in conjunction with the patient's puncture site. The constant-speed needle entry and exit device includes two sets of symmetrically arranged boxes. The positioning rod is a positioning hole in which the positioning rod slides horizontally. A first bidirectional lead screw arranged laterally is threadedly connected between the two groups of boxes. A rotational speed adjusting device is arranged in the body, and the rotational speed adjusting device is used to adjust the transmission ratio between the output shaft and the input shaft. A ring-shaped placement slot is opened, and a plurality of groups of rectangular slots are evenly connected in the placement slot along the circumferential direction. A first spring is arranged between the inner bottom surfaces, the end of the telescopic block is set in a pointed shape, and the telescopic blocks on the two sets of driving discs cooperate to realize the clamping and footage effect on the puncture needle, the drainage tube and the expansion tube. The input shaft of the adjusting device is connected to the hand-held drive device, so that the hand-held drive device can realize the forward and reverse driving work on the input shaft of the rotational speed adjusting device, and at the same time, the rotation angle of the input shaft and the distance of the driving rotation are recorded. An arc-shaped contact rod is installed at one end of the body, and the contact rod is in contact with the patient's skin to achieve a supporting effect on the box structure;

The electromagnet, ultrasonic probe, ultrasonic display screen, and reciprocating mechanism are electrically connected to the first controller installed on the frame, and the rotational speed adjusting device and the hand-held driving device are connected to the second controller installed in the box. electrical connection.

Preferably, the body clamping device includes two sets of rectangular windows opened on the bed of the bed, two sets of rectangular blocks are laterally slidably fitted in the rectangular windows, and the upper end of the rectangular blocks is provided with a T-shaped sliding block. A slider with a T-shaped cross-section is slidably fitted in the chute, and a second bidirectional lead screw placed in the chute on the corresponding side is longitudinally rotatably connected between the two sets of rectangular blocks on the same side of the left and right sides. The second two-way screw is screwed with the sliders in the two sets of chutes on the left and the same side respectively, and the same second two-way screw is in opposite directions with the two sets of sliders on which it is threaded. The same second two-way screw One side of one of the two groups of rectangular blocks connected on the bar is vertically threaded with a first positioning pin that is matched with the lower end of the bed plate, and the upper end of the sliding block is detachably connected with an arc-shaped clamping plate, so A plurality of groups of cylinders arranged in a radial direction are evenly connected on the side surface of the arc-shaped clamping plate facing the arc-shaped circle center. A first telescopic rod is radially slidably fitted in the cylinder, and the first telescopic rod is connected to the cylinder. A second spring is connected between the inner bottom surfaces, and an arc-shaped rubber clamping block is connected to one end of the first telescopic rod toward the center of the arc-shaped clamping plate.

Preferably, the upper end of the slider is provided with a vertically arranged circular groove, the lower end of the arc-shaped clamping plate is connected with a cylindrical rod that is vertically slidably matched with the circular groove, and an upper end opening is formed on the side wall of the circular groove. The longitudinally arranged rectangular passage groove, the side wall of the circular groove is provided with a horizontally arranged rectangular plugging groove with an open upper end, the passage groove and the plugging groove are communicated through an arc-shaped groove, and the lower end of the cylindrical rod is connected with a The rectangular rod that is vertically slidably matched with the passing groove and the blocking groove, the inner bottom surface of the circular groove is connected with a third spring, and the upper end of the third spring is connected with a circular plate that is vertically slidably fitted in the circular groove, so The circular plate is in contact with the lower bottom surface of the cylindrical rod to form a detachable arc-shaped clamping plate structure.

Preferably, the reciprocating mechanism includes an electric telescopic rod installed on the upper end of the rectangular cylinder, an L-shaped driving rod is installed at the end of the electric telescopic rod, and the lower end of the driving rod is vertically slidably matched with one end of the support rod, The electric telescopic rod is electrically connected with the first controller.

Preferably, the ultrasonic probe is provided with a rectangular matching groove that is slidingly matched with the connecting rod, the two side walls of the matching groove are provided with rectangular accommodating grooves, and the accommodating groove is slidably fitted with a trapezoidal cross-section clip. A clamping block, the inclined slope of the end of the clamping block is set toward one end of the connecting rod, and a fourth spring placed in the accommodation groove is connected between one end of the clamping block and the inner bottom surface of the accommodation groove. The front end of the block is connected with a drive plate extending out of the accommodating groove, and the two side walls of the connecting rod and the matching groove are provided with clamping holes matched with the clamping block, thereby forming a detachable ultrasonic probe structure.

Preferably, the rotational speed adjusting device includes a first continuously variable transmission wheel and a second continuously variable transmission wheel that are arranged in the box along the up-down direction and cooperate with each other, and the continuously variable transmission wheel includes a first conical wheel arranged opposite to each other. and the second conical wheel, the outer end surface of the first conical wheel on the upper side is coaxially connected with a moving shaft, the outer end of the moving shaft is coaxially connected with a first translation plate, and the front end of the moving shaft extends out of the first translation plate and axially slidingly fits with the first output shaft that is longitudinally rotatably connected to the box body, the first output shaft is coaxially connected to the output shaft of the rotational speed adjusting device, and the second conical wheel on the upper side is rotatably connected to the box body, The outer end surface of the second conical wheel on the lower side is coaxially connected with a second translation plate, the first conical wheel on the lower side is rotatably connected in the box body, and also includes a rotating connection in the box arranged on the upper and lower sides of the continuously variable transmission wheel. The guide rods in the body, the two sides of the first translation plate and the second translation plate are screwed on the corresponding guide rods respectively, and the four groups of guide rods are driven by the transmission device installed in the box to rotate synchronously. The rotating shaft of the first conical wheel is coaxially connected with the input shaft of the rotational speed adjusting device, a metal belt is sleeved between the first stepless speed change wheel and the second stepless speed change wheel, and the transmission device is connected to the second control device. electrical connection between devices.

Preferably, the transmission device includes a first gear coaxially connected to the guide rod, and a second gear rotatably connected in the box is meshed between the two sets of first gears on the same continuously variable transmission wheel. A third gear is coaxially connected to the second gear, a fourth gear that is rotatably connected to the box is meshed between the two sets of third gears, and a drive knob placed outside the box is coaxially connected to the outside of the rotating shaft of the fourth gear. The driving knob is provided with a pointer, the outer side wall of the box is provided with a scale matched with the pointer, and the driving knob and the second controller are electrically connected.

Preferably, the hand-held drive device includes a casing connected to the lower side of the box body and having an open side on one side away from the centers of the two groups of boxes, and the open end of the casing on the side away from the centers of the two groups of boxes slides laterally. A hand-grip drive sleeve is matched, and a first one-way gear on the upper side and a second one-way gear on the lower side are rotatably connected in the casing. The transmission directions of the two sets of one-way gears are opposite. A double-sided rack is vertically slidably fitted in the sleeve, and the double-sided rack is horizontally arranged and placed between two sets of one-way gears. The drive sleeve is vertically threaded with a drive bolt, and the end of the drive bolt is It is rotatably connected with the double-sided rack, and the double-sided rack is meshed with the one-way gear on the corresponding side at the vertical extreme position. The double-sided rack is connected with the side wall of the casing. Spring, the first one-way gear meshes with the fifth gear rotatably connected in the housing, the second one-way gear meshes with the sixth gear rotatably connected in the housing, and the fifth gear and the sixth gear are The belt is connected for transmission, and also includes a seventh gear coaxially connected to the input shaft of the rotational speed adjusting device, and the seventh gear meshes with the fifth gear;

The double-sided rack is connected with a rack displacement calculation device, which is used to calculate the rotation angle and distance of the meshing drive between the rack and the one-way gear. The rack displacement calculation device and the second controller are electrically connected. connect.

Preferably, the rack displacement calculation device includes a telescopic conductive contact connected to the double-sided rack, and also includes a plurality of groups of resistance coils laterally arranged in the housing, the telescopic conductive contact and the resistance coil are in contact and cooperate to form In the structure of the sliding varistor, the conductive contacts and multiple groups of resistance coils form a resistance circuit, and the resistance circuit is electrically connected with the second controller.

Beneficial effects of the present invention: The present invention uses a detachable arc-shaped clamping plate structure in the body clamping device to prevent the patient from tampering during the puncture process, and uses the guide rails on the bed to set up a matching frame The positioning and fixing of the ultrasonic probe is realized by the three-dimensional adjustment device and the angle adjustment device on the frame body, so as to free the hands of the medical staff, and then the puncture needle, the guide tube and the expansion tube are driven through the two sets of matched driving discs. The work of puncturing the footage is completed, and at the same time, the speed of the footage is controllably adjusted by the speed adjusting device, and the hand-held driving device utilizes the transmission characteristic of the one-way gear to realize the input work of the positive and negative directions of the power transmission, and the present invention can effectively liberate the medical care. Personnel, one medical staff can complete the whole process. This device is suitable for both one-step and two-step puncture methods. The puncture process is uniform and the footage angle is stable and not prone to deviation. The puncture speed can be selected at any time according to the situation, which improves the puncture efficiency. The efficiency and accuracy of puncture also reduce the work pressure of medical staff, avoid puncture errors caused by subjective problems, and avoid the phenomenon of over-penetration and violent puncture. The operation is simple, the practicability is strong, and it is suitable for promotion.

Description of drawings

FIG. 1 is a perspective view of a perspective view of the present invention.

FIG. 2 is a perspective view of a perspective view of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a perspective view of the body gripping device of the present invention.

FIG. 5 is a perspective view of a part of the structure of the body gripping device of the present invention.

6 is a cross-sectional view of the slider and its connecting portion in the present invention.

FIG. 7 is a schematic three-dimensional structure diagram of the slider in the present invention.

FIG. 8 is a three-dimensional structural view of the arc-shaped clamping plate and its connecting part in the present invention.

FIG. 9 is a perspective structural view of the ultrasonic guiding device in the present invention.

FIG. 10 is a perspective view of a part of the structure of the ultrasonic guide device of the present invention.

Fig. 11 is a perspective view of the support rod in the ultrasonic guiding device of the present invention.

Fig. 12 is a three-dimensional structural view of the connection between the ultrasonic probe and the connecting rod in the present invention.

Fig. 13 is a perspective structural view of the connecting rod and its connecting part in the present invention.

Fig. 14 is a perspective view 1 of the perspective structure of the needle in-out device at a constant speed according to the present invention.

Fig. 15 is a perspective view 2 of a three-dimensional structural view of a needle in and out device at a constant speed according to the present invention.

Fig. 16 is a perspective structural view of the speed change adjusting device and its connecting part in the present invention.

Figure 17 is a cross-sectional view of the drive disk and its connecting portion in the present invention.

Fig. 18 is a three-dimensional structure of the speed change adjustment device in the present invention.

FIG. 19 is a three-dimensional structure of the hand-held drive device in the present invention.

In the figure, 1, bed body; 2, guide rail; 3, frame body; 4, horizontal positioning pin; 5, vertical sleeve; 6, vertical telescopic rod; 7, vertical positioning pin; 8, rectangular hole; 9 , rectangular cylinder; 10, longitudinal positioning pin; 11, long hole; 12, support rod; 13, connecting rod; 14, electromagnet; 15, ultrasonic probe; 16, ultrasonic display screen; 17, box body; 18, horizontal Locating rod; 19, locating hole; 20, first two-way screw; 21, driving disc; 22, placing slot; 23, rectangular slot; 24, telescopic block; 25, first spring; 26, contact rod; 27, rectangle Window; 28, rectangular block; 29, chute; 30, slider; 31, second two-way screw; 32, first positioning pin; 33, arc clamping plate; 34, cylinder; 35, first telescopic Rod; 36, second spring; 37, rubber block; 38, circular groove; 39, cylindrical rod; 40, through groove; 41, blocking groove; 42, arc groove; 43, rectangular rod; 44, third Spring; 45, circular plate; 46, electric telescopic rod; 47, driving rod; 48, matching groove; 49, accommodating groove; 50, clamping block; 51, fourth spring; 52, driving plate; 53, clamping hole; 54, the first stepless speed change wheel; 55, the second stepless speed change wheel; 56, the first tapered wheel; 57, the second tapered wheel; 58, the moving shaft; 59, the first translation plate; 60, the first Output shaft; 61, second translation plate; 62, guide rod; 63, metal belt; 64, first gear; 65, second gear; 66, third gear; 67, fourth gear; 68, drive knob; 69 70, drive sleeve; 71, first one-way gear; 72, second one-way gear; 73, double-sided rack; 74, drive bolt; 75, return spring; 76, fifth gear; 77, The sixth gear; 78, the seventh gear; 79, the telescopic conductive contact; 80, the resistance coil.

Detailed ways

The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings 1-19.

Embodiment 1, combined with the prior art, this embodiment discloses an ultrasonic guided puncture catheter placement and drainage device to solve the problems mentioned in the above background technology, an ultrasonic guided puncture catheter placement and drainage device, including a bed body 1 . , the bed board of the bed body 1 is connected with a body clamping device. The body clamping device realizes clamping and fixing of the patient's body. After determining the patient position of the body, the body clamping device is used to clamp the patient's body. Fix it to prevent it from moving during the puncture process, because during the puncture process, it is to prevent the patient from tampering, because during the puncture process, the patient's large movements will cause the puncture needle to shift, thereby destroying the surrounding area. The blood vessels and tissues of the bed body 1 are provided with transverse guide rails 2 on the front and rear sides of the bed body 1, and an ultrasonic guiding device is transversely arranged on the guide rails 2;

The ultrasonic guiding device includes a frame body 3 that is laterally slidably connected to the guide rail 2. The frame body 3 is removed from the guide rail 2 and installed on any side of the bed body 1, which is convenient to take when not in use. Next, the frame body 3 is longitudinally screwed with a lateral positioning pin 4 that cooperates with the guide rail 2. After the lateral positioning pin 4 is rotated, the end of the lateral positioning pin 4 is matched with one side of the guide rail 2 to make it Clamped at the current position, the cooperation between the frame body 3 and the guide rail 2 is to adjust the position in the lateral direction. It can move along the lateral direction of the frame body 3. The upper end of the frame body 3 is installed with a vertical sleeve 5, and a vertical telescopic rod 6 is vertically slidably fitted in the vertical sleeve 5. The vertical sleeve The cylinder 5 is longitudinally threaded with a vertical positioning pin 7 that cooperates with the vertical telescopic rod 6, and the vertical positioning pin 7 abuts on one side of the telescopic rod after being screwed, so that the vertical telescopic rod 6 and the vertical sleeve 5 are connected. The relative position between them is limited, the upper end of the vertical telescopic rod 6 is provided with a rectangular hole 8, the rectangular hole 8 is longitudinally slidingly fitted with a rectangular cylinder 9, the front and rear ends of the rectangular cylinder 9 are open, and the vertical telescopic rod 6. The upper end is vertically screwed with a longitudinal positioning pin 10 that cooperates with the rectangular cylinder 9. The longitudinal positioning pin 10 also has the effect of longitudinally locking the rectangular cylinder 9. The above three sets of positioning pins are matched with the corresponding structures. The adjustment of the position of the rectangular cylinder 9 in three three-dimensional directions, the left and right side walls of the rectangular cylinder 9 are provided with inclined elongated holes 11, and two sets of elongated holes 11 are slidably fitted with a The L-shaped support rod 12 in the rectangular cylinder 9 enables the support rod 12 to move only in the direction of the elongated hole 11 . The direction of the hole 11 moves, and the purpose of the long hole 11 is to give the rectangular cylinder 9 an inclined downward driving action, so that the ultrasonic probe 15 connected to it can have an uninterrupted downward pushing action at any time, which is consistent with the reality. The reciprocating mechanism adopts the electric telescopic rod 46 installed on the upper end of the rectangular cylinder 9, the end of the electric telescopic rod 46 is installed with an L-shaped driving rod 47, and the lower end of the driving rod 47 is connected to the support One end of the rod 12 is slidably fitted vertically, so that the electric telescopic rod 46 drives the driving rod 47 at the end in the process of longitudinal reciprocating movement, so that the rectangular cylinder 9 can be inclined downward along the elongated hole 11 For reciprocating movement, the other end of the support rod 12 is spherically hinged with a connecting rod 13. The position where the connecting rod 13 and the support rod 12 are spherically hinged is provided with an electromagnet 14 and an armature that are used in cooperation with each other. The connecting rod 13 and the support rod 12 are hinged for the purpose of That is, a hemispherical installation groove is installed at the end of the support rod 12, and then the spherical structure on the connecting rod 13 is installed in the installation groove. 15 It matches the patient's patient position, and at the same time ensures that the image of the needle insertion can be clearly seen. After adjustment , energize the electromagnet 14 installed in the hemisphere to make it adsorb the spherical armature, so as to achieve the purpose of reliable fixation. The other end of the connecting rod 13 can be detachably installed with an ultrasonic probe 15. For the installation method, we have adopted a rectangular matching groove 48 on the ultrasonic probe 15 that is slidingly matched with the connecting rod 13. The connecting rod 13 is inserted into the matching groove 48, and the two side walls of the matching groove 48 are open. There is a rectangular accommodating groove 49, the front end of the accommodating groove 49 is open and not closed, the accommodating groove 49 is slidably fitted with a trapezoidal clamping block 50, and the area where the front end opening of the accommodating groove 49 is not closed is provided with a restricting clamping block 50. For the limit cross bar that has fallen out, the inclined surface at the end of the clamping block 50 is set toward one end of the connecting rod 13, that is to say, when the connecting rod 13 is inserted, it will first touch the inclined surface of the clamping block 50, so that it can be Smoothly inserted into the matching groove 48, a fourth spring 51 placed in the accommodating groove 49 is connected between one end of the clamping block 50 and the inner bottom surface of the accommodating groove 49, and the front end of the clamping block 50 is connected with a drive plate extending out of the accommodating groove 49 52. The two side walls where the connecting rod 13 is matched with the matching groove 48 are provided with clamping holes 53 which are matched with the clamping block 50, thereby forming a detachable structure of the ultrasonic probe 15. During the matching, the connecting rod 13 is inserted into the matching groove. 48, the side with the clamping hole 53 on the side wall of the connecting rod 13 should be matched with the clamping block 50. After the connecting rod 13 hits the inclined clamping block 50, it will push the fourth spring 51 to compress. Push the clamping block 50 into the accommodating groove 49, and after the connecting rod 13 completely enters the matching groove 48, the clamping block 50 encounters the clamping hole 53 and enters the clamping hole 53 under the action of the fourth spring 51 to connect the connection. The rod 13 is clamped, and when it needs to be disassembled, the drive plate 52 is pushed outward so that the clamping block 50 enters the accommodating groove 49 again. 3 is provided with an ultrasound display screen 16, which is convenient for real-time display of ultrasound images;

It also includes a constant-speed needle entry and exit device used in conjunction with the patient's puncture site. The constant-speed needle entry and exit device includes two sets of symmetrically arranged boxes 17. One set of boxes 17 is provided with a lateral positioning rod 18, and the other set of boxes 17. A positioning hole 19 is installed on the locating rod for lateral sliding cooperation with the positioning rod. The purpose of the matching between the positioning rod and the positioning hole 19 is to make the relative movement between the two groups of boxes 17 only in the lateral direction, and between the two groups of boxes 17 The first two-way screw 20 is threadedly connected, and the first two-way screw 20 is threaded with the boxes 17 on both sides in opposite directions. The rotation of the first two-way screw 20 drives the two sets of boxes 17 toward Move in the direction of approaching or moving away from each other, so as to adjust the distance between the two groups of boxes 17. The box 17 is provided with a rotational speed adjusting device, and the rotational speed adjusting device is used to adjust the transmission ratio between the output shaft and the input shaft, thereby In the process of needle insertion, the speed of needle insertion is adjusted. The output shaft of the rotational speed adjusting device is coaxially connected to a drive disk 21 placed outside the box body 17. The outer edge of the drive disk 21 has a ring-shaped Placement slot 22, a plurality of groups of rectangular slots 23 are evenly connected in the placement slot 22 along the circumferential direction, and the end of the rectangular slot 23 is slidably fitted with a telescopic block 24 along the radial direction of the drive disk 21 and is not detached. 24 is not detached, it only needs to install a limit frame for limiting the position at the end. A first spring 25 is arranged between the telescopic block 24 and the inner bottom surface of the rectangular slot 23. The end of the telescopic block 24 Set in a pointed shape, the telescopic blocks 24 on the two sets of drive discs 21 cooperate to realize the clamping and footage effect on the puncture needle, the drainage tube and the expansion tube. After clamping, with the rotation of the drive disc 21 to carry out the push and puncture work, the tip of the telescopic block 24 should be higher than the outer edge of the placement groove 22 as much as possible, so as to have a good clamping effect, the first two-way The purpose of adjusting the distance between the two sets of boxes 17 by the lead screw 20 is to adjust the distance between the tip ends of the telescopic rods on different drive discs 21, so as to be suitable for puncture needles, drainage tubes and dilation tubes of different thicknesses. It ensures the efficiency and effect of the puncture footage without damaging the puncture needle, drainage tube and dilation tube. The input shaft of the rotational speed adjusting device is connected to the hand-held drive device, which satisfies the requirement for the hand-held drive device to adjust the rotational speed. The input shaft of the adjustment device realizes the forward and reverse driving work, and at the same time, the rotation angle of the input shaft and the driving distance are recorded. Different from the working state of the needle, the hand-held drive device will also measure the rotation angle and distance of the output shaft of the drive speed adjusting device during driving, so as to measure the drive disk 21 to drive the puncture needle, drainage tube, and expansion tube. The distance of the footage, an arc-shaped contact rod 26 is installed at one end of the box body 17, and the contact rod 26 is in contact with the patient's skin to achieve a supporting effect on the structure of the box body 17;

The electromagnet 14 , the ultrasonic probe 15 , the ultrasonic display screen 16 , and the reciprocating mechanism are electrically connected to the first controller installed on the frame body 3 . The second controller installed inside is electrically connected, and the first controller and the second controller are both made of an integrated CPU, which collects and processes data, and simultaneously controls each device to work in time sequence. When the present invention is in use, First, make a rough judgment on the position of the patient's lesion, and then use the body clamping device to clamp the body at the patient's position to prevent the patient from tampering during the puncture process. After clamping, the frame body 3 Installed on the guide rail 2 on one side, and then, the ultrasound probe 15 is used for imaging observation of the lesion, and the needle insertion route is determined. After the determination is made, the position of the ultrasound probe 15 is determined. Move the position of the rectangular cylinder 9 to the position of the ultrasonic probe 15 with the vertical positioning pin 7, and after the movement is completed, the position is locked by the positioning pin, and then the ultrasonic probe 15 is connected with the connecting rod 13. After the inclined surface of the clamping block 50, the fourth spring 51 is pushed into the accommodating groove 49, and the connecting rod 13 enters the matching groove 48. Once the clamping block 50 encounters the clamping hole 53, it smoothly enters the clamping hole 53. Then, the angle of the ultrasonic probe 15 is adjusted by ball hinge according to the angle of the ultrasonic probe 15. After adjustment, the electromagnet 14 is energized, so that the electromagnet 14 adsorbs the armature to lock the current ultrasonic probe 15. For the purpose of adjusting the angle, after the probe angle is locked, in the process of puncturing, the electric telescopic rod 46 can be controlled to reciprocate through the first controller, so that the support rod 12 moves along the direction of the elongated hole 11, so that the The ultrasound probe 15 has an inclined downward reciprocating action, which makes the work of contrast-enhanced ultrasound more intuitive and inclined;

When performing the "one-step" puncture and tube placement, that is, the direct puncture method, the distance between the two sets of boxes 17 is adjusted by the first bidirectional lead screw 20, so that the distance between the telescopic blocks 24 on the drive plate 21 is the same as the distance between the two sets of boxes 17. The diameters of the drainage tubes are matched, and then the contact rods 26 on the two sets of boxes 17 are supported at the position where the patient needs to be punctured, and then the assembled drainage tube is inserted between the two sets of drive discs 21 along the puncture position. The head rests on the skin surface of the patient, and then the input shaft of the rotational speed adjusting device is driven by the hand-held drive device to work in the forward direction. The output shaft of the rotational speed adjusting device drives the drive disc 21 to rotate in a group. The puncture can be punctured to the patient's lesion at a constant speed, and the puncture speed can also be controlled by adjusting the rotational speed adjustment device to prevent over-penetration and violent puncture from damaging tissues and blood vessels. File and record, after puncturing, pull out the inner cannula and inner core, and lock the drainage tube on the patient's skin;

When performing the "two-step method" puncture and tube placement, that is, the guide wire puncture method, the distance between the two groups of boxes 17 is adjusted by the first bidirectional lead screw 20, so that the distance between the telescopic blocks 24 on the drive plate 21 is adjusted. The distance of the puncture needle matches the diameter of the puncture needle, and then the contact rods 26 on the two sets of boxes 17 are supported at the position where the patient needs to be punctured, and then the assembled puncture needle is inserted into the two sets of drive discs 21 along the puncture position. The head rests on the skin surface of the patient, and then the input shaft of the rotational speed adjusting device is driven by the hand-held drive device to work in the forward direction, and the output shaft of the rotational speed adjusting device drives the drive disk 21 to rotate and work together. The puncture needle is punctured at the patient's lesion position at a constant speed, and the puncture speed can also be controlled by adjusting the rotational speed adjustment device to prevent over-penetration and violent puncture damage to tissues and blood vessels. At the same time, the hand-held drive device can also record and display the puncture distance. , then, take out the needle core of the puncture needle, hold the device with one hand, insert the guide wire into the puncture needle with the other hand, after the guide wire is inserted, hold the guide wire by hand, and drive the input shaft of the rotational speed adjustment device through the hand-held drive device Carry out reverse work, take out the puncture needle from the patient's body, then insert the dilation tube into the human lesion along the guide wire according to the above steps, and then drive the input shaft of the rotational speed adjustment device through the hand-held drive device to perform reverse work, and the dilation tube is Take out, and then puncture the combination of the drainage tube and the inner cannula along the guide wire in the above-mentioned manner, and use the data recorded by the hand-held drive device to puncture the drainage tube with the same stroke to prevent over-penetration. Afterwards, take out the guide wire, then take out the inner cannula, you can also adjust the distance between the two sets of boxes 17 by opening the first bidirectional screw 20, and take down the whole device. The adjusting device adjusts the speed of puncture at any time. After the puncture is completed, the inner sleeve and the inner core are pulled out, and the drainage tube is locked on the skin of the patient. This embodiment can effectively liberate the medical staff, and the whole process can be completed by one medical staff. The device is suitable for both one-step and two-step puncture methods. The puncture process is uniform and the footage angle is stable and not easy to deviate. The puncture speed can be selected at any time according to the situation, which improves the efficiency of puncture and the accuracy of puncture. The work pressure of medical staff, avoid puncture errors caused by subjective problems, avoid the phenomenon of over-penetration and violent puncture, the operation is simple, the practicability is strong, and it is suitable for promotion.

Embodiment 2, on the basis of Embodiment 1, the body clamping device includes two sets of rectangular windows 27 opened on the bed of the bed body 1, the two sets of rectangular windows 27 are longitudinally spaced apart, and the rectangular windows 27 are slidably fitted laterally. There are two sets of rectangular blocks 28, so that the rectangular blocks 28 can only move along the lateral direction of the rectangular window 27. The upper end of the rectangular blocks 28 is provided with a T-shaped chute 29, which is slidably fitted in the chute 29. The slider 30 has a T-shaped cross-section. The slider 30 can only move along the longitudinal direction of the chute 29. The two sets of rectangular blocks 28 on the same side of the left and right are connected longitudinally in the chute 29 on the corresponding side. The second two-way lead screw 31, the two sets of rectangular blocks 28 on the left share a second two-way lead screw 31, and the two sets of rectangular blocks 28 on the right share a second two-way lead screw 31, and the second two-way lead screw 31 They are respectively threaded with the sliders 30 in the two sets of sliding grooves 29 on the left and the same side, and the same second bidirectional screw 31 and the two sets of sliders 30 threaded on the same side are threaded in opposite directions, so that the second bidirectional screw 31 is threaded in the opposite direction. 31 During the rotation process, the two sets of sliding blocks 30 are driven to move in the same or opposite directions, and one side of one set of rectangular blocks 28 of the two sets of rectangular blocks 28 connected to the same second two-way screw 31 is vertical. The first locating pin 32 is threadedly connected with the lower end of the bed plate. The first locating pin 32 has the effect of locking the two sets of rectangular blocks 28 in the rectangular window 27. The upper end of the sliding block 30 is detachably connected with an arc. As for the detachable structure here, the upper end of the slider 30 is provided with a circular groove 38 arranged vertically, and the lower end of the arc-shaped clamping plate 33 is connected with a vertical sliding fit with the circular groove 38 The cylindrical rod 39, the side wall of the circular groove 38 is provided with a longitudinally arranged rectangular passage groove 40 with an open upper end, and the side wall of the circular groove 38 is provided with a horizontally arranged rectangular plugging groove 41 with an open upper end, and the passage groove 40 It is in a cross shape with the blocking groove 41, and the arc groove 42 communicates between the passing groove 40 and the blocking groove 41. The lower end of the cylindrical rod 39 is connected with the passing groove 40 and the blocking groove 41. The vertical sliding fit The rectangular rod 43, the inner bottom surface of the circular groove 38 is connected with a third spring 44, and the upper end of the third spring 44 is connected with a circular plate 45 that is vertically slidably fitted in the circular groove 38, and the circular plate 45 is connected with The bottom surface of the cylindrical rod 39 is in contact with each other to form a detachable arc-shaped clamping plate 33 structure. The elastic force of the spring 44 drives the circular plate 45 to move downward. When it moves to the position of the arc-shaped groove 42, the arc-shaped rod is rotated 90 degrees, so that the rectangular rod 43 is rotated to the position where the groove 41 is blocked. At the third spring 44 Under the action of the cylindrical rod 39, the cylindrical rod 39 moves upward by one end distance, and the rectangular rod 43 is stuck in the blocking groove 41 and cannot be rotated. 42 position, and then turn it 90 degrees in the opposite direction, and pull it out from the pass. The purpose of this setting is to make the arc on it clamped. The plate 33 can be easily disassembled at any time without affecting the normal use of the bed body 1. The side surface of the arc-shaped clamping plate 33 facing the arc-shaped circle center is evenly connected with a plurality of radially arranged cylinders 34. The cylinders 34 A first telescopic rod 35 is slidably fitted in the inner radial direction. A second spring 36 is connected between the first telescopic rod 35 and the inner bottom surface of the cylinder 34 . An arc-shaped rubber block 37 is connected, and the telescopic clamping structure prevents the patient from causing rigid damage during the clamping process. When using this embodiment, after determining the patient's puncture position, move the The two sets of rectangular blocks 28 on the left and right sides reach the designated position, and then use the first positioning pin 32 to lock, and then install the arc-shaped clamping block 50 on the slider 30, according to the patient's body shape, by adjusting the two sets of second two-way The lead screw 31 makes the slider 30 on the same side move in the same or opposite direction to achieve the effect of clamping. After the clamping plate is disassembled after use, the device can be restored to its original state.

Embodiment 3, on the basis of Embodiment 1, the rotational speed adjusting device includes a first continuously variable speed change wheel 54 and a second continuously variable speed change wheel 55 which are arranged in the box body 17 in the up-down direction and cooperate with each other. The rotational speed adjusting device discloses a continuously variable speed adjustment structure. Two sets of tapered wheel structures, the tapered surfaces of the two sets of tapered wheels are arranged oppositely, the outer end surface of the first tapered wheel 56 on the upper side is coaxially connected with a moving shaft 58, and the outer end of the moving shaft 58 is coaxially connected with a second A translation plate 59, the first translation plate 59 and the moving shaft 58 are rotatably connected through a bearing, and the front end of the moving shaft 58 protrudes from the first translation plate 59 and is longitudinally rotatably connected to the first output shaft on the casing 17 60 Axial sliding fit, the axial sliding fit here can be achieved by a key-keyway connection, so that the moving shaft 58 can only move axially relative to the first output shaft 60, but at the same time the two groups can Rotating together, the first output shaft 60 is coaxially connected with the output shaft of the rotational speed adjusting device, that is to say, the first output shaft 60 is used as the output shaft of the rotational speed adjusting device, and the second conical wheel 57 on the upper side rotates Connected in the box body 17, the outer end face of the second conical wheel 57 on the lower side is coaxially connected with a second translation plate 61, and the second translation plate 61 and the outer end surface of the second conical wheel 57 are also connected by bearings. The first conical wheel 56 on the lower side is rotatably connected in the box body 17, and also includes guide rods 62 arranged on the upper and lower sides of the continuously variable transmission wheel and rotatably connected in the box body 17. The guide rods 62 are four groups, one without. There are two sets of gear shift wheels, and the two sets of guide rods 62 play the role of positioning. At the same time, in order to prevent the translation plate from rotating, the two sides of the first translation plate 59 and the second translation plate 61 are screw-fitted with the same. On the corresponding guide rods 62, the four groups of guide rods 62 are driven to rotate synchronously by the transmission device installed in the box body 17. During the rotation of the four groups of guide rods 62, the translation plates on the corresponding side will move synchronously. , the shaft of the first conical wheel 56 on the lower side is coaxially connected to the input shaft of the rotational speed adjusting device, and a metal belt 63 is sleeved between the first stepless speed change wheel 54 and the second stepless speed change wheel 55. The belt 63 is to make the transmission between the bevel gears more reliable, and the transmission device is electrically connected to the second controller;

The transmission device includes a first gear 64 coaxially connected to the guide rod 62, and a second gear 65 rotatably connected in the casing 17 is meshed between the two sets of first gears 64 on the same continuously variable transmission wheel. The second gear 65 is coaxially connected with a third gear 66 , and a fourth gear 67 rotatably connected in the casing 17 is meshed between the two sets of third gears 66 , and the outer shaft of the fourth gear 67 is coaxially connected There is a drive knob 68 placed outside the box body 17, the drive knob 68 is provided with a pointer, the outer side wall of the box body 17 is provided with a scale matched with the pointer, and the drive knob 68 is between the second controller. Electrical connection, the pointer on the drive knob 68 will point to the corresponding scale after the knob, and then the second controller will record the transmission ratio here, and record the parameters of the subsequent stroke technology, that is, Under the condition that the rotation angle of the input shaft is known, the rotation angle of the output shaft can be obtained through the real-time transmission ratio, so as to calculate the footage travel of the drive disc 21 to drive the corresponding needle type. The drive knob 68 drives the fourth gear 67 to rotate, the fourth gear 67 drives the third gear 66 on both sides to work, the third gear 66 drives the coaxial second gear 65 to work, and the second gear 65 drives the two The first gear 64 works, and the rotation of the first gear 64 causes the two sets of guide rods 62 to rotate, thereby driving the upper first translation plate 59 and the first conical wheel 56 to reciprocate longitudinally, and driving the lower The second translation plate 61 and the second conical wheel 57 perform synchronous reciprocating longitudinal movement, so as to adjust the transmission ratio of the metal belt 63 between the two sets of continuously variable speed wheels, so as to achieve the purpose of stepless speed regulation.

In the fourth embodiment, on the basis of the first embodiment, the hand-held driving device includes a casing 69 connected to the lower side of the box body 17 and away from the center of the two groups of box bodies 17 with an open side surface. A hand-held drive sleeve 70 is slidably fitted at the open end on the side away from the center of the two sets of boxes 17 , and the drive sleeve 70 can only move in the lateral direction along the housing 69 , and the position held by the user is the drive sleeve At the position of 70, the casing 69 is rotatably connected with a first one-way gear 71 on the upper side and a second one-way gear 72 on the lower side. The transmission directions of the two sets of one-way gears are opposite. A double-sided rack 73 is vertically slidably fitted in the sleeve 70. The double-sided rack 73 is horizontally arranged and placed between two sets of one-way gears. The drive sleeve 70 is vertically threaded with a drive bolt 74, so The ends of the driving bolts 74 are rotatably connected with the double-sided racks 73, and the double-sided racks 73 are respectively engaged with the one-way gears on the corresponding sides at the vertical extreme positions. The surface rack 73 changes its position in the vertical direction. After the limit position of the upward movement, it will mesh with the first one-way gear 71 but not the second one-way gear 72. After the limit position of the downward movement, It will mesh with the second one-way gear 72, but not the first one-way gear 71. The double-sided rack 73 and the side wall of the housing 69 are connected with a horizontally arranged return spring 75. The return spring 75 starts The purpose of restoring the drive sleeve 70 is to enable the user to unidirectionally drive the one-way gear on the corresponding side by pressing the drive sleeve 70 all the time. The fifth gear 76 is meshed, and the second one-way gear 72 is meshed with the sixth gear 77 rotatably connected in the housing 69 . The fifth gear 76 and the sixth gear 77 are connected by a belt through a transmission, including a coaxial connection. The seventh gear 78 on the input shaft of the rotational speed adjusting device, the seventh gear 78 meshes with the fifth gear 76, and here the fifth gear 76 and the sixth gear 77 and the seventh gear 78 all play the role of reversing and the purpose of the power transition;

The double-sided rack 73 is connected with a rack displacement calculation device for calculating the rotation angle and distance of the meshing drive between the rack and the one-way gear. There is an electrical connection between the rack displacement calculation device and the second controller. The rack displacement calculation device includes a telescopic conductive contact 79 connected to the double-sided rack 73, and also includes multiple sets of resistance coils 80 laterally arranged in the housing 69. The telescopic conductive contact 79 Contact and cooperate with the resistance coil 80 to form the structure of the sliding varistor. The conductive contact and the multiple groups of resistance coils 80 form a resistance circuit, and the resistance circuit is electrically connected with the second controller. It should be noted here that the return spring 75 After the double-sided rack 73 is reset, when the reset spring 75 is in a natural state, the double-sided rack 73 is in a state just about to mesh with the one-way gear, and the resistance in the resistance circuit at this time is zero, and the double-sided rack The distance moved by the 73 can be fed back through the change of the resistance value, and then collected and recorded by the second controller to obtain the rotation angle of the corresponding gear driven by the double-sided rack 73, combined with the speed ratio of the speed adjustment device, so that the position can be converted. The driving disc 21 drives the corresponding needle-shaped puncture tape, which is very easy to use. When in use in this embodiment, the driving bolt 74 is driven to screw the double-sided rack 73 to the upper limit position. At this time, the double-sided rack 73 Meshing with the first one-way gear 71, the user presses the drive sleeves 70 on both sides with force to drive the double-sided rack 73 to move against the return spring 75, and drives the first one-way gear 71 to work, the first one-way gear 71 drives the fifth gear 76, and then drives the seventh gear 78 to work to increase the power input for the speed adjusting device. At the same time, the resistance circuit will record the current stroke of the double-sided rack 73, and then press the end, the return spring 75 will The drive sleeve 70 is reset, at this time the first one-way gear 71 will not be driven to rotate, the drive sleeve 70 is restored to the initial position, and the cycle is repeated to realize the puncture work at a constant speed of the footage. Screw the double-sided rack 73 to the downward limit position, at this time, the double-sided rack 73 is engaged with the second one-way gear 72, and the user drives the double-sided rack by pressing the driving sleeves 70 on both sides. 73 overcomes the return spring 75 to move, drives the second one-way gear 72 to work, the second one-way gear 72 drives the sixth gear 77 to drive the fifth gear 76 to work, and then drives the seventh gear 78 to work, which is a rotational speed adjusting device Increase the reverse power input, at the same time, the resistance circuit will record the stroke of the double-sided rack 73 this time, and then by pressing the end, the reset spring 75 will reset the drive sleeve 70, and the second one-way gear 72 will not. After being driven to rotate, the driving sleeve 70 returns to the original position, and the needle is withdrawn in a cycle.

When the present invention is used, the patient's lesion position is roughly judged first, and then after the patient's puncture position is determined, the two groups of rectangular blocks 28 on the left and right sides are moved to reach the designated position, and then the first positioning pin 32 is used. Lock, and then install the arc-shaped clamping block 50 on the slider 30. According to the patient's body shape, adjust the two sets of second bidirectional screws 31 to make the slider 30 on the same side move in the same or opposite direction. , to achieve the effect of clamping and prevent the patient from tampering during the puncture process. After clamping, install the frame body 3 on the guide rail 2 on one side. After the needle insertion route is determined, the position of the ultrasonic probe 15 is determined, and the position of the rectangular cylinder 9 is moved to the position of the ultrasonic probe 15 by the horizontal positioning pin 4, the vertical positioning pin 10 and the vertical positioning pin 7, and the movement is good. Afterwards, the position is locked by the locating pin, and then the ultrasonic probe 15 is connected with the connecting rod 13. After the connecting rod 13 touches the inclined surface of the clamping block 50, the fourth spring 51 is pushed into the accommodating groove 49. The connecting rod 13 enters the matching groove 48. Once the clamping block 50 encounters the clamping hole 53, it smoothly enters the clamping hole 53 to realize the clamping connection. Then, the angle of the ultrasonic probe 15 is adjusted according to the angle of the ultrasonic probe 15 by using a spherical joint. After the adjustment, the electromagnet 14 is energized, so that the electromagnet 14 adsorbs the armature to achieve the purpose of locking the current angle of the ultrasonic probe 15. After the probe angle is locked, in the process of puncturing, the first control The controller controls the electric telescopic rod 46 to reciprocate, so that the support rod 12 moves along the direction of the elongated hole 11, so that the ultrasonic probe 15 has an inclined downward reciprocating action, making the work of contrast-enhanced ultrasound more intuitive and inclined;

When performing the "one-step" puncture and tube placement, that is, the direct puncture method, the distance between the two sets of boxes 17 is adjusted by the first bidirectional lead screw 20, so that the distance between the telescopic blocks 24 on the drive plate 21 is the same as the distance between the two sets of boxes 17. The diameters of the drainage tubes are matched, and then the contact rods 26 on the two sets of boxes 17 are supported at the position where the patient needs to be punctured, and then the assembled drainage tube is inserted between the two sets of drive discs 21 along the puncture position. The head rests on the skin surface of the patient, and then the input shaft of the rotational speed adjusting device is driven by the hand-held drive device to perform forward work, and the output shaft of the rotational speed adjusting device drives the drive disk 21 to rotate. When puncturing the patient's lesion, the speed of the puncture can also be controlled by adjusting the rotational speed adjustment device to prevent over-penetration and violent puncture damage to tissues and blood vessels. Archive the record, after the puncture, pull out the inner cannula and the inner core, and lock the drainage tube on the patient's skin;

When performing the "two-step method" puncture and tube placement, that is, the guide wire puncture method, the distance between the two groups of boxes 17 is adjusted by the first bidirectional lead screw 20, so that the distance between the telescopic blocks 24 on the drive plate 21 is adjusted. The distance of the puncture needle matches the diameter of the puncture needle, and then the contact rods 26 on the two sets of boxes 17 are supported at the position where the patient needs to be punctured, and then the assembled puncture needle is inserted into the two sets of drive discs 21 along the puncture position. The head rests on the skin surface of the patient, and then the input shaft of the rotational speed adjusting device is driven by the hand-held drive device to work in the forward direction, and the output shaft of the rotational speed adjusting device drives the drive disk 21 to rotate and work together. The puncture needle is punctured to the patient's lesion at a constant speed, and the puncture speed can also be controlled by adjusting the rotational speed adjusting device to prevent over-penetration and violent puncture from damaging tissues and blood vessels. At the same time, the hand-held drive device can also record and display the puncture distance. , then, take out the needle core of the puncture needle, hold the device with one hand, insert the guide wire into the puncture needle with the other hand, after the guide wire is inserted, hold the guide wire by hand, and drive the input shaft of the rotational speed adjustment device through the hand-held drive device Carry out reverse work, take out the puncture needle from the patient's body, then insert the dilation tube into the human lesion along the guide wire according to the above steps, and then drive the input shaft of the rotational speed adjustment device through the hand-held drive device to perform reverse work, and the dilation tube is Take out, and then puncture the combination of the drainage tube and the inner cannula along the guide wire in the above-mentioned manner, and use the data recorded by the hand-held drive device to puncture the drainage tube with the same stroke to prevent over-penetration. Afterwards, take out the guide wire, then take out the inner cannula, you can also adjust the distance between the two sets of boxes 17 by opening the first bidirectional screw 20, and take down the whole device. The adjusting device adjusts the speed of puncturing at any time. After the puncturing is completed, the inner sleeve and the inner core are pulled out and the drainage tube is locked on the skin of the patient. The present invention can effectively liberate the medical staff, and the whole process can be completed by one medical staff. Both one-step and two-step puncture methods are applicable to this device. The puncture process is uniform and the footage angle is stable and not prone to deviation. The puncture speed can be selected at any time according to the situation, which improves the efficiency of puncture and the accuracy of puncture, and reduces the need for medical care. The work pressure of personnel, avoid puncture errors caused by subjective problems, avoid the phenomenon of over-penetration and violent puncture, the operation is simple, the practicability is strong, and it is suitable for promotion.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. An ultrasound-guided puncture catheter placement and drainage device, comprising a bed body (1), characterized in that a body clamping device is connected to the bed plate of the bed body (1), and the body clamping device realizes the operation of a patient's body. Clamping and fixing, transverse guide rails (2) are arranged on the front and rear sides of the bed body (1), and an ultrasonic guiding device is transversely arranged on the guide rails (2); The ultrasonic guiding device comprises a frame body (3) that is laterally slidably connected to the guide rail (2). A vertical sleeve (5) is installed on the upper end of the frame body (3), and a vertical telescopic rod (6) is vertically slidably fitted in the vertical sleeve (5). A vertical positioning pin (7) matched with the vertical telescopic rod (6) is threadedly connected, the upper end of the vertical telescopic rod (6) is provided with a rectangular hole (8), and the rectangular hole (8) is longitudinally slidably fitted. There is a rectangular cylinder (9), the upper end of the vertical telescopic rod (6) is vertically threaded with a longitudinal positioning pin (10) matched with the rectangular cylinder (9), the left and right side walls of the rectangular cylinder (9) are An oblique elongated hole (11) is opened, and an L-shaped support rod (12) placed in the rectangular cylinder (9) is slidably fitted between the two sets of elongated holes (11). One end of the support rod (12) is driven by a reciprocating mechanism installed on the upper end of the rectangular cylinder (9) to move in the direction of the elongated hole (11). ) and the supporting rod (12) are spherically hinged with an electromagnet (14) and an armature that are used in cooperation with each other, and the other end of the connecting rod (13) can be detachably installed with an ultrasonic probe (15). The frame body (3) is provided with an ultrasonic display screen (16); It also includes a constant-speed needle entry and exit device used in conjunction with a patient's puncture site, the constant-speed needle entry and exit device comprises two sets of symmetrically arranged boxes (17), and a set of boxes (17) is provided with a lateral positioning rod (18), The other group of boxes (17) is provided with a positioning hole (19) which is laterally slidably matched with the positioning rod, and a first bidirectional lead screw (20) arranged laterally is threadedly connected between the two groups of boxes (17). The two-way screw (20) is threaded with the opposite side of the casing (17) on both sides of the part of the thread in the opposite direction, the casing (17) is provided with a rotational speed adjusting device, and the rotational speed adjusting device is used to adjust the output shaft and the input shaft. Transmission ratio, the output shaft of the rotational speed adjusting device is coaxially connected with a drive disk (21) placed outside the box (17), and an annular placement groove (22) is opened on the outer edge of the drive disk (21), A plurality of groups of rectangular grooves (23) are evenly connected in the placement groove (22) along the circumferential direction, and the ends of the rectangular grooves (23) are slidingly fitted with a telescopic block (24) along the radial direction of the drive disk (21) and are not detached. , a first spring (25) is arranged between the telescopic block (24) and the inner bottom surface of the rectangular slot (23), the end of the telescopic block (24) is set in a pointed shape, and the two sets of drive discs (21) The telescopic block (24) cooperates to realize the clamping and footage action on the puncture needle, the drainage tube and the expansion tube. The input shaft of the rotational speed adjusting device is connected to the hand-held driving device, which satisfies the realization of the hand-held driving device for the input shaft of the rotational speed adjusting device. The forward and reverse driving works, and the rotation angle of the input shaft and the driving distance are recorded at the same time. An arc-shaped contact rod (26) is installed at one end of the box body (17), and the contact rod (26) is connected with the The patient's skin contact realizes the supporting effect on the structure of the box body (17); The electromagnet (14), the ultrasonic probe (15), the ultrasonic display screen (16), and the reciprocating mechanism are electrically connected to the first controller installed on the frame body (3). The driving device of the type is electrically connected with the second controller installed in the box body (17). 2 . An ultrasonic guided puncture catheter placement and drainage device according to claim 1 , wherein the body clamping device comprises two sets of rectangular windows ( 27 ) opened on the bed of the bed body ( 1 ). Two sets of rectangular blocks (28) are laterally slidably fitted in the rectangular window (27), and the upper end of the rectangular blocks (28) is provided with a T-shaped chute (29), which is slidably fitted in the chute (29). There is a sliding block (30) with a T-shaped cross-section, and a second bidirectional screw (31) placed in the chute (29) on the corresponding side is longitudinally rotatably connected between the two sets of rectangular blocks (28) on the same side of the left and right , the second bidirectional screw (31) is threaded with the sliders (30) in the two sets of chutes (29) on the left and the same side, and the same second bidirectional screw (31) is threaded with the two The threads of the set of sliders (30) are matched in opposite directions, and one side of one set of rectangular blocks (28) of the two sets of rectangular blocks (28) connected to the same second bidirectional screw (31) is vertically threaded with A first positioning pin (32) matched with the lower end of the bed plate, an arc-shaped clamping plate (33) is detachably connected to the upper end of the sliding block (30), and the arc-shaped clamping plate (33) faces the center of the arc-shaped circle. A plurality of radially arranged cylinders (34) are evenly connected on one side, and a first telescopic rod (35) is radially slidably fitted in the cylinder (34), and the first telescopic rod (35) is connected to the circular A second spring (36) is connected between the inner bottom surfaces of the cylinder (34), and an arc-shaped rubber block (37) is connected to one end of the first telescopic rod (35) facing the center of the arc-shaped clamping plate (33). 3. An ultrasonic guided puncture catheter placement and drainage device according to claim 2, characterized in that a vertically arranged circular groove (38) is opened on the upper end of the slider (30), and the arc-shaped clamping The lower end of the plate (33) is connected with a cylindrical rod (39) which is vertically slidably matched with the circular groove (38), and the side wall of the circular groove (38) is provided with a longitudinally arranged rectangular passage groove (40) with an upper end opening. The side wall of the groove (38) is provided with a horizontally arranged rectangular blocking groove (41) with an open upper end, and the arc-shaped groove (42) communicates between the groove (40) and the blocking groove (41). The lower end of the cylindrical rod (39) is connected with a rectangular rod (43) which is vertically slidably matched with the passage groove (40) and the blocking groove (41), and the inner bottom surface of the circular groove (38) is connected with a third spring (44). ), the upper end of the third spring (44) is connected with a circular plate (45) that is vertically slidably fitted in the circular groove (38), and the circular plate (45) is in contact with the lower bottom surface of the cylindrical rod (39), Thus, a detachable arc-shaped clamping plate (33) structure is formed. 4. An ultrasonic guided puncture catheter placement and drainage device according to claim 1, characterized in that the reciprocating mechanism comprises an electric telescopic rod (46) installed on the upper end of the rectangular cylinder (9), the electric telescopic rod (46) An L-shaped drive rod (47) is installed at the end, and the lower end of the drive rod (47) is vertically slidably matched with one end of the support rod (12). electrical connection between devices. 5 . The ultrasonic guiding puncture catheter placement and drainage device according to claim 1 , wherein the ultrasonic probe ( 15 ) is provided with a rectangular matching groove ( 48 ) that is slidably matched with the connecting rod ( 13 ). 6 . Rectangular accommodating grooves (49) are opened on both side walls of the matching groove (48), and a clamping block (50) with a trapezoidal cross-section is slidably fitted in the accommodating groove (49), and the clamping block ( The inclined slope of the end of the 50) is set toward one end of the connecting rod (13), and a fourth plate placed in the accommodating groove (49) is connected between one end of the clamping block (50) and the inner bottom surface of the accommodating groove (49). A spring (51), the front end of the clamping block (50) is connected with a drive plate (52) extending out of the accommodating groove (49), and the two side walls of the connecting rod (13) and the matching groove (48) are open upwards There is a clamping hole (53) matched with the clamping block (50), thereby forming a detachable ultrasonic probe (15). 6. An ultrasonic guided puncture catheter placement and drainage device according to claim 1, characterized in that the rotational speed adjusting device comprises a first continuously variable speed change which is arranged in the box body (17) along the up-down direction and cooperates with each other A wheel (54) and a second continuously variable speed wheel (55), the continuously variable speed wheel includes a first tapered wheel (56) and a second tapered wheel (57) arranged oppositely, the first tapered wheel on the upper side A moving shaft (58) is coaxially connected to the outer end surface of the wheel (56), a first translation plate (59) is coaxially connected to the outside of the moving shaft (58), and the front end of the moving shaft (58) extends out of the first translation The plate (59) is axially slidably fitted with the first output shaft (60) which is longitudinally rotatably connected to the casing (17). The second conical wheel (57) on the side is rotatably connected in the box (17), the outer end surface of the second conical wheel (57) on the lower side is coaxially rotatably connected with a second translation plate (61), A conical wheel (56) is rotatably connected in the box body (17), and also includes guide rods (62) arranged on the upper and lower sides of the continuously variable transmission wheel and rotatably connected in the box body (17). The two sides of the plate (59) and the second translation plate (61) are screwed on the corresponding guide rods (62) respectively, and the four groups of guide rods (62) are driven by the transmission device installed in the box (17). For synchronous rotation, the shaft of the first conical wheel (56) on the lower side is coaxially connected to the input shaft of the rotational speed adjusting device, and the first stepless speed change wheel (54) and the second stepless speed change wheel (55) are connected coaxially. A metal belt (63) is sleeved between, and the transmission device is electrically connected with the second controller. 7 . The ultrasonic guided puncture catheter placement and drainage device according to claim 6 , wherein the transmission device comprises a first gear ( 64 ) coaxially connected to the guide rod ( 62 ), the same stepless A second gear (65) rotatably connected in the casing (17) is meshed between the two sets of first gears (64) on the transmission wheel, and a third gear (66) is coaxially connected to the second gear (65). ), a fourth gear (67) rotatably connected in the box (17) is meshed between the two groups of third gears (66), and the outer shaft of the fourth gear (67) is coaxially connected with a (17) Outside the drive knob (68), the drive knob (68) is provided with a pointer, the outer side wall of the box (17) is provided with a scale matching the pointer, the drive knob (68) and the first The two controllers are electrically connected. 8 . The ultrasonic guided puncture catheter placement and drainage device according to claim 1 , wherein the hand-held driving device comprises a device connected to the lower side of the box body ( 17 ) and away from the center of the two groups of box bodies ( 17 ). 9 . A casing (69) with an open side surface is laterally slidably fitted with a hand-held drive sleeve (70) at the open end of the casing (69) away from the center of the two sets of boxes (17). The first one-way gear (71) on the upper side and the second one-way gear (72) on the lower side are respectively rotatably connected in (69), and the transmission directions of the two sets of one-way gears are opposite, and the drive sleeve ( 70) A double-sided rack (73) is vertically slidably fitted inside, the double-sided rack (73) is laterally arranged and placed between two sets of one-way gears, and the drive sleeve (70) is connected with vertical threads There are driving bolts (74), the ends of the driving bolts (74) are rotatably connected with the double-sided racks (73), and the double-sided racks (73) are respectively connected with the one-way gears on the corresponding sides at the vertical extreme positions. A horizontally arranged return spring (75) is connected between the double-sided rack (73) and the side wall of the casing (69), and the first one-way gear (71) is rotatably connected to the casing ( The fifth gear (76) in 69) meshes, and the second one-way gear (72) meshes with the sixth gear (77) rotatably connected in the housing (69), the fifth gear (76) and the sixth gear (76) The gears (77) are connected through a belt for transmission, and further comprises a seventh gear (78) coaxially connected to the input shaft of the rotational speed adjusting device, the seventh gear (78) meshing with the fifth gear (76); The double-sided rack (73) is connected with a rack displacement calculation device, which is used to calculate the rotation angle and distance of the meshing drive between the rack and the one-way gear. The rack displacement calculation device is connected with the second controller. electrical connection between. 9 . The ultrasonic guided puncture catheter placement and drainage device according to claim 8 , wherein the rack displacement calculation device comprises a telescopic conductive contact ( 79 ) connected to the double-sided rack ( 73 ). 10 . ), and also includes a plurality of groups of resistance coils (80) laterally arranged in the casing (69), the telescopic conductive contacts (79) and the resistance coils (80) are in contact and cooperate to form a sliding varistor structure, and the conductive contacts are connected with the plurality of groups of The resistance coil (80) constitutes a resistance circuit, and the resistance circuit is electrically connected with the second controller.

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