CN113967062A

CN113967062A - Traction fixing device for finger puncture positioning

Info

Publication number: CN113967062A
Application number: CN202111210360.0A
Authority: CN
Inventors: 张宁; 闫江涛; 李希萌; 侯继光; 顾璐昊; 韩延伟; 邓云蛟; 侯雨雷; 曾达幸
Original assignee: First Hospital Of Qinhuangdao; Yanshan University
Current assignee: First Hospital Of Qinhuangdao; Yanshan University
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-01-25
Anticipated expiration: 2041-10-18
Also published as: CN113967062B

Abstract

The invention provides a traction fixing device for finger puncture positioning, which comprises a U-shaped slide rail, a wrist support frame assembly, a finger support assembly, a finger traction assembly, a finger puncture assembly, a puncture catheter, a finger fixing assembly and a G-shaped clamp. The utility model discloses a puncture catheter, including U type slide rail and workstation, the first installation end fixed connection of U type slide rail and workstation, the dull and stereotyped second installation end that presss from both sides through the G type of bottom of wrist strut subassembly is connected with the workstation, indicate that the support subassembly is located the inside of U type slide rail, the clip fixed orifices that points fixed subassembly and the dead lever that points pull the subassembly are connected with the upper end that indicates the support subassembly respectively, the hand slider that points puncture subassembly and the upper end of U type slide rail are connected, puncture catheter's outer pipe wall and the horizontal guide arm threaded connection that points puncture subassembly, puncture catheter's internal diameter and kirschner wire sliding connection. Aiming at the finger bone fracture puncture operation, the invention has complete function and accurate operation, can avoid the interference with other fingers in the operation and has high flexibility.

Description

Traction fixing device for finger puncture positioning

Technical Field

The invention relates to the technical field of medical instruments, in particular to a traction fixing device for finger puncture positioning.

Background

In the traditional finger puncture operation process, an operator usually determines the finger puncture position and angle according to experience, the subjective uncertainty is large, and the direct influence is brought to the success of the operation of a patient, whether the secondary injury is caused to the patient or not and the postoperative rehabilitation condition of the patient. In the process of puncture, the kirschner wire generally needs to keep a certain included angle with the longitudinal axis of the phalange, the fracture can not be fixed when the included angle is too small or too large, the inner wall of the phalange is smooth, and the kirschner wire is difficult to stably keep in the optimal puncture angle range when a doctor holds an electric drill to penetrate the kirschner wire. Therefore, the probability of successful needle threading in one time in the operation process is low, repeated fluoroscopy in the operation can cause damage to the bodies of a doctor and a patient, and the repeated needle threading can also cause the consequences of loosening of the kirschner wire, local osteonecrosis, unstable fracture fixation and the like.

The existing finger positioning fixer needs auxiliary medical care personnel, the fixing mode of the locator is complicated, and one person is difficult to independently complete the whole work, so that the operation quality and efficiency are influenced. Meanwhile, most of the existing finger positioning fixtures are singly improved from one aspect of finger traction or surgical puncture, few devices for the whole surgical process of finger fracture are used, and puncture is usually performed by depending on the experience of doctors, so that the angle and depth control capability is still in the experience, and the accuracy and the standardization cannot be realized. For example, in a phalangeal fracture kirschner wire internal fixation guide and a use method thereof disclosed in patent CN106175913A, a fixing positioner for puncture guide needs a handheld device, and precise adjustment of puncture angle and puncture depth cannot be achieved.

Disclosure of Invention

Aiming at the problems in the prior art, considering the actual finger bone fracture operation and combining with the operation flow, respectively designing a wrist support frame assembly, a finger support assembly, a finger traction assembly, a finger puncture assembly and a finger fixing assembly according to the modularized design idea, and designing a traction fixing device for finger puncture positioning, which can assist the operation doctor in positioning the finger puncture part, adjusting the angle, limiting the depth and assisting fracture reduction through modularized recombination, in the device, fixing the wrist of the injured finger end by adjusting a wrist clamp, a first inner rod, a first telescopic sleeve and a second inner rod in the wrist support frame assembly, fixing the middle and rear end fingers of a person through a first through hole on a placing block in the finger support assembly and the finger fixing assembly, and traction and fixing the front end fingers by adjusting a front end finger clamp and an elastic operation rope in the finger traction assembly, the invention can assist the operating doctor to independently complete the positioning operation, standardizes the data and visualizes the regulated data, and has the advantages of convenient operation, safety, reliability, accurate positioning and the like.

The invention provides a traction fixing device for finger puncture positioning, which comprises a finger support component, a finger puncture component, a finger fixing component and a finger traction component,

the finger support assembly comprises a placing block and a bottom supporting block, the lower end of the placing block is fixedly connected with the upper end of the bottom supporting block, a first threaded hole is formed in the top of the upper end of the placing block, first through holes are formed in two sides of the upper end of the placing block, the lower end of the bottom supporting block is fixedly connected with a third mounting end of the workbench and is located inside a U-shaped sliding rail;

the finger puncture assembly comprises a horizontal guide rod, a third inner rod, a second telescopic sleeve, a fourth inner rod, a pre-judging needle guide rod, a rotary table and a hand-operated slider, wherein the first end of the horizontal guide rod is fixedly connected with the first end of the third inner rod, the second end of the third inner rod is connected with the first end of the second telescopic sleeve, the second end of the second telescopic sleeve is connected with the first end of the fourth inner rod, the second end of the fourth inner rod is connected with the first end of the rotary table, the second end of the rotary table is connected with the first end of the hand-operated slider, the second end of the hand-operated slider is connected with the upper end of the U-shaped slide rail in a sliding manner, the second end of the horizontal guide rod is connected with a puncture guide tube, the pre-judging needle guide rod comprises a curved rod, a fifth inner rod and a telescopic joint, the first end of the curved rod is fixedly connected with the mounting end of the puncture guide tube, the second end of the curved rod is connected with the first end of the fifth inner rod, and the second end of the fifth inner rod is fixedly connected with the expansion joint;

the finger fixing assembly comprises a screwing handle and a fixer, the fixer is of a convex structure, a small head end of the fixer is respectively provided with a finger placing hole, a clamping groove and a cylindrical hole, the finger placing hole and the clamping groove are positioned in the middle of the small head end of the fixer, the finger placing hole is positioned at the lower end of the clamping groove, the middle of a large head end of the fixer is provided with a U-shaped groove, two sides of the large head end of the fixer are provided with clamp fixing holes, a puncture groove is arranged at the junction of the large head end and the small head end of the fixer, the built-in threaded pin is positioned in the cylindrical hole, the clamp fixing holes are connected with a first through hole of the finger support assembly through fixing pins, and the screwing handle is connected with the built-in threaded pin;

the finger traction assembly comprises a front-end finger clamp, an elastic rope and a fixing rod, a clamp fixing hole of the finger fixing assembly and the fixing rod of the finger traction assembly are respectively connected with a first through hole and a first threaded hole of the finger support assembly, and a hand-operated sliding block of the finger puncture assembly is connected with the upper end of the U-shaped sliding rail.

In a preferred embodiment of the present invention, the wrist brace assembly further comprises a wrist brace assembly, which includes a wrist clip, a first inner rod, a first telescopic sleeve, a second inner rod and a bottom flat plate, wherein the wrist clip is fixedly connected to the first end of the first inner rod, the second end of the first inner rod is connected to the first end of the first telescopic sleeve, the second end of the first telescopic sleeve is connected to the first end of the second inner rod, and the second end of the second inner rod is fixedly connected to the bottom flat plate.

Further, in the finger traction assembly, a through groove is formed in the upper end of the fixing rod, the lower end of the fixing rod is connected with the first threaded hole, through holes are formed in two sides of the first end of the front-end finger clamp, and the elastic rope penetrates through the through holes and is connected with the fixing rod.

Further, U type slide rail and the first installation end fixed connection of workstation, the dull and stereotyped bottom of wrist support frame subassembly press from both sides through the G type with the second installation end of workstation is connected, indicate to hold in the palm the subassembly and be located the inside of U type slide rail, wrist support frame subassembly indicate to hold in the palm the subassembly with the G type presss from both sides the constitution operation auxiliary device, the G type press from both sides evenly distributed in the dull and stereotyped both sides in bottom.

Further, in the finger rest assembly, the bottom support blocks are uniformly distributed on two sides of the bottom of the placing block, the first threaded holes are uniformly distributed on the top of the placing block, and the first through holes are uniformly distributed on two sides of the placing block; in the finger fixing assembly, the clip fixing holes are uniformly distributed on two sides of the fixer and correspond to the first through holes one to one.

Furthermore, the axis of the third inner rod is perpendicular to the axis of the horizontal guide rod, and the cross section of one end of the puncture guide pipe is arc-shaped or oval.

Furthermore, the outer tube wall of the puncture catheter is in threaded connection with the horizontal guide rod of the finger puncture assembly, and the inner wall of the puncture catheter is in sliding connection with the Kirschner wire.

In a preferred embodiment of the invention, an additional finger fixing assembly is further included, comprising a tension buckle, a load-bearing base plate and an adhesive layer, wherein the upper end of the load-bearing base plate is connected with the tension buckle, and the lower end of the load-bearing base plate is connected with the adhesive layer.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, through the modular design, the fixed traction and the positioning puncture of the fractured finger are realized by organically combining the finger support assembly, the finger puncture assembly, the finger fixing assembly and the finger traction assembly, the puncture can be realized at the finger tip and the side position of the finger, and the device has strong practicability.

2. The wrist support frame assembly is further included, and the wrist at the end of the injured finger is fixed by adjusting the wrist clamp, the first inner rod, the first telescopic sleeve and the second inner rod in the wrist support frame assembly, so that the device can better realize the fixing and positioning functions.

3. The wrist support frame and the finger support assembly can effectively and independently fix injured fingers of a patient, and can avoid mutual interference with other fingers, so that the operation is more accurate.

4. According to the invention, the puncture position is accurately positioned by adjusting the rotating table, the puncture catheter and the telescopic rod of the finger puncture assembly, so that the finger puncture assembly can be used for solving the fracture problems of the finger fracture, the fracture of the wrist joint, the ankle joint, the toe and the like which need to be punctured.

5. The rotary table, the hand-operated sliding block and the telescopic rod of the finger puncture component can realize puncture at any angle and at any needle inserting point, and can realize accurate control of the needle inserting point, the needle discharging direction and the needle discharging position.

6. The scale sizes are arranged on the inner rods, the rotating table and the puncture guide pipe, so that the positioning and puncture operations are more accurate.

Drawings

FIG. 1 is a general schematic view of a traction fixation device for finger puncture location of the present invention;

FIG. 2 is an overall right side view of the pulling fixture for finger puncture location of the present invention;

FIG. 3 is an isometric view of the finger fixing assembly of the present invention;

FIG. 4 is a schematic view of the straight needle puncturing operation of the present invention;

FIG. 5 is an isometric view of an additional finger hold assembly of the present invention;

fig. 6 is a schematic diagram of the lateral puncture of the traction fixation device for finger puncture positioning in the present invention.

The main reference numbers:

a U-shaped sliding rail 1, a wrist supporting frame component 2, a wrist clamp 21, a first inner rod 22, a first telescopic sleeve 23, a second inner rod 24, a bottom flat plate 25, a simulated limb 3, a finger support component 4, a bottom supporting block 41, a first through hole 42, a first threaded hole 43, a placing block 44, a finger traction component 5, a front finger clamp 51, an elastic rope 52, a fixing rod 53, a finger puncture component 6, a horizontal guide rod 61, a third inner rod 62, a second telescopic sleeve 63, a fourth inner rod 64, a rotating platform 65, a hand-operated slider 66, a puncture guide pipe 7, a finger fixing component 8, a tightening handle 81, a finger placing hole 82, a U-shaped groove 83, a clamping groove 84, a built-in threaded pin 85, a puncture groove 86, a clamp fixing hole 87, a G-shaped clamp 9, a workbench 10, a kirschner wire 11, an additional finger fixing component 12, a tensioning belt buckle 121, a bearing bottom plate 122, an adhesive layer 123, a pre-judging needle guide rod 13, a curved rod 131, a fifth inner rod 132 and an expansion joint 133.

Detailed Description

The technical contents, structural features, attained objects and effects of the present invention are explained in detail below with reference to the accompanying drawings.

The traction fixing device for positioning finger puncture disclosed by the invention comprises a U-shaped slide rail 1, a wrist support frame assembly 2, a finger rest assembly 4, a finger traction assembly 5, a finger puncture assembly 6, a puncture guide pipe 7, a finger fixing assembly 8, a G-shaped clamp 9 and an additional finger fixing assembly 12, as shown in figure 1 and combined with figures 2 and 5, wherein the U-shaped slide rail 1 can be in a U shape, an arc shape or a semicircular shape.

Wrist support frame subassembly 2, it includes wrist clamp 21, first interior pole 22,

first telescope tube

23, 24 and the dull and stereotyped 25 in bottom in the second, the first end fixed connection of wrist clamp 21 and first interior pole 22, the second end of first interior pole 22 is connected with the first end of first telescope tube 23, the second end of first telescope tube 23 and the first end of 24 in the second are connected, the second end and the dull and stereotyped 25 fixed connection in bottom of 24 in the second, wrist clamp 21 is used for supporting simulation limbs 3.

Indicate to hold in palm subassembly 4, it includes bottom sprag piece 41, first through-hole 42, first screw hole 43 and places piece 44, the lower extreme of placing piece 44 and the upper end fixed connection of bottom sprag piece 41, the top of placing the upper end of piece 44 is equipped with first screw hole 43, the both sides of placing the upper end of piece 44 are equipped with first through-hole 42, the third installation end fixed connection of the lower extreme of bottom sprag piece 41 and workstation 10, and be located the inside of U type slide rail 1, wherein workstation 10 is used for simulating the operation workstation.

In a preferred embodiment of the present invention, the number of the bottom supporting blocks 41 is four and is uniformly distributed at both sides of the lower end of the placing block 44, the number of the first screw holes 43 is four and is uniformly distributed at the upper end of the placing block 44, and the number of the first through holes 42 is twelve and is uniformly distributed at both sides of the placing block 44.

The finger traction assembly 5 comprises a front end finger clamp 51, an elastic rope 52 and a fixed rod 53, wherein the elastic rope 52 can be one of long and thin objects with elasticity such as a rope, a rubber band or a spring. Considering that the fixing rod 53 interferes with the kirschner wire 11 when the straight needle puncture is performed, a through groove is formed at the upper end of the fixing rod 53, the lower end of the fixing rod 53 is connected with the first threaded hole 43, through holes are formed at both sides of the first end of the front finger grip 51, and the elastic string 52 passes through the through holes and is connected with the fixing rod 53. Among them, the k-wire 11 is a surgical instrument for orthopedic fixation.

The finger puncture assembly 6 comprises a horizontal guide rod 61, a third inner rod 62, a second telescopic sleeve 63, a fourth inner rod 64, a pre-judgment needle guide rod 13, a rotary table 65 and a hand-cranking sliding block 66, wherein the axis of the third inner rod 62 is perpendicular to the axis of the horizontal guide rod 61, and the cross section of one end of the puncture guide tube 7 is arc-shaped or oval.

The first end of horizontal guide 61 and the first end fixed connection of third interior pole 62, the second end of third interior pole 62 and the first end of second telescopic sleeve 63 are connected, the second end of second telescopic sleeve 63 and the first end of fourth interior pole 64 are connected, the second end of fourth interior pole 64 and the first end of revolving stage 65 are connected, the second end of revolving stage 65 and the first end of hand slider 66 are connected, the second end of hand slider 66 and the upper end sliding connection of U type slide rail 1, the second end of horizontal guide 61 and the outer pipe wall connection of puncture pipe 7.

As shown in FIG. 6, the needle guide 13 is foreseen to comprise a curved rod 131, a fifth inner rod 132 and an expansion joint 133, wherein the first end of the curved rod 131 is fixedly connected with the mounting end of the puncture catheter 7, the second end of the curved rod 131 is connected with the first end of the fifth inner rod 132, and the second end of the fifth inner rod 132 is fixedly connected with the expansion joint 133.

As shown in fig. 3, the finger fixing assembly 8 includes a tightening handle 81 and a fixer, the fixer has a convex structure, a small end of the fixer is respectively provided with a finger placing hole 82, a clamping groove 84 and a cylindrical hole, the finger placing hole 82 and the clamping groove 84 are located in the middle of the small end of the fixer, the finger placing hole 82 is located at the lower end of the clamping groove 84, the middle of the large end of the fixer is provided with a U-shaped groove 83, both sides of the large end of the fixer are provided with clip fixing holes 87, a puncture groove 86 is located at the junction of the large end and the small end of the fixer, a built-in threaded pin 85 is located in the cylindrical hole, the clip fixing holes 87 are connected with the first through hole 42 of the finger support assembly 4 through fixing pins, and the tightening handle 81 is connected with the built-in threaded pin 85.

Particularly, hole 82 and front end finger clamp 51 inner wall can be inlayed one deck protective layer like the sponge to the finger, the protection finger that can be better, prevent the secondary damage of apparatus to the finger, the radius size that hole 82 was placed to the finger is adjustable, the quantity of clip fixed orifices 87 is twelve, clip fixed orifices 87 and first through-hole 42 one-to-one, and evenly distributed is in the fixer both sides, U type groove 83 is the same with the width of placing piece 44, finger fixed component 8 holds in the palm subassembly 4 with the finger through fixed pin or nut screw fixed connection.

As shown in fig. 4, the U-shaped slide rail 1 is fixedly connected with the first mounting end of the table 10, the bottom plate 25 of the wrist support frame assembly 2 is connected with the second mounting end of the table 10 through the G-shaped clamp 9, and the fixing part for fixing the table 10 and the bottom plate 25 of the wrist support frame assembly can be any connection form of the G-shaped clamp 9, screw connection or gluing connection; the finger rest assembly 4 is located inside the U-shaped sliding rail 1, a clamp fixing hole 87 of the finger fixing assembly 8 and a fixing rod 53 of the finger traction assembly 5 are respectively connected with a first through hole 42 and a first threaded hole 43 of the finger rest assembly 4, a hand-operated slider 66 of the finger puncture assembly 6 is connected with the upper end of the U-shaped sliding rail 1, the outer surface of the puncture guide tube 7 is in threaded connection with a horizontal guide rod 61 of the finger puncture assembly 6, the inner wall of the puncture guide tube 7 is in sliding connection with the Kirschner wire 11, and the finger rest assembly 4, the wrist support assembly 2 and the finger puncture assembly 6 are used in a matched mode in the actual operation process. Preferably, the wrist support frame assembly 2, the finger rest assembly 4 and the G-shaped clamps 9 constitute an operation assisting device, specifically, the number of the G-shaped clamps 9 is two, and the G-shaped clamps 9 are uniformly distributed on two sides of the bottom flat plate. The inner diameter of the puncture catheter 7 is equal to the diameter of the kirschner wire 11, and the inner diameter of the horizontal guide rod 61 is equal to the outer tube wall of the puncture catheter 7.

Further, in order to ensure the overall light weight of the device and the precision of the operation process, the materials of the finger rest assembly 4, the wrist support frame assembly 2, the horizontal guide rod 61, the third inner rod 62, the second telescopic sleeve 63 and the fourth inner rod 64 in the finger puncture assembly 6, the front end finger clamp 51 and the fixed rod 53 in the finger fixing assembly 5 and the finger fixing clamp assembly 8 are selected to be light plastic materials, and the finger rest assembly can be made of one of nylon or metal materials on the premise of not considering the light weight.

In order to ensure the accuracy of the adjustment of the device, the surfaces of the first inner rod 22, the first telescopic sleeve 23 and the second inner rod 24 in the wrist support frame assembly 2, and the third inner rod 62, the second telescopic sleeve 63, the fourth inner rod 64 and the rotary table 65 in the finger puncture assembly are provided with scale values; in order to ensure the visualization of the puncture depth in the operation process, a scale value is arranged on the puncture catheter 7.

In another aspect of the present invention, as shown in FIG. 5, another way to secure the fingers is an additional finger fixing assembly 12, which includes a tension buckle 121, a load-bearing bottom plate 122 and an adhesive layer 123, wherein the upper end of the load-bearing bottom plate 122 is connected to the tension buckle 121, and the lower end of the load-bearing bottom plate 122 is connected to the adhesive layer 123. Through adhesive layer 123 and indicate to hold in the palm 4 fixed connection, bearing bottom plate 122 is used for placing injured finger, and taut buckle 121 passes through groove and bearing bottom plate 122 fixed connection, according to pointing the radius size, the elasticity condition of adjustable taut buckle 121 to reach the fixed effect of extrusion.

The following describes a traction fixation device for finger puncture location according to the present invention with reference to the following embodiments:

based on the functions of the device, the method comprises the following specific working steps:

according to basic operation steps, work flow planning is carried out on the use of the device, a preoperative user carries out CT examination, the condition of finger bone fracture of the user is observed through the CT examination, the user enters an operating room and lies on an operating bed, an operating workbench is placed on one side of a finger of a patient, the traction fixing device for finger puncture positioning is placed on a proper position of the operating workbench, a bottom flat plate 25 of a wrist support frame assembly 2 is fixed through a G-shaped clamp 9 in an operation auxiliary device, a finger fixing assembly 8 is installed on a finger support assembly 4, a U-shaped groove 83 is clamped above a placing block 44, clamp fixing holes 87 correspond to first through holes 42 one to one, and the finger fixing holes are fixed through fixing pins.

Firstly, respectively placing wrists and fractured fingers of a user in a wrist clamp 21 of a wrist support frame component 2 and a finger placing hole 82 in a finger fixing component 8, and adjusting the wrist placing height to the most appropriate position through a first telescopic sleeve 23, a first inner rod 22 and a second inner rod 24 in the wrist support frame component 2; the position of the finger support component 4 is properly adjusted, so that the middle and rear ends of injured fingers are located in the middle of the finger placing hole 82, other four fingers are placed below the front side of the finger support component 4 after being bent, mutual interference among the fingers is avoided, the device is adjusted to the position which is most convenient for operation, the finger support component is fixed, the handle 81 is screwed down in the finger fixing component 8, the clamping groove 84 extrudes the fingers inwards, and the purposes of fixing the fingers and extruding and resetting two fractured bones are achieved.

Then, the front end finger clip 51 is sleeved on the front end of the finger of the patient, the opening size of the front end finger clip 51 is adjusted according to the radius of the finger, the front end of the finger is clamped, after the finger clip is fixed, the elastic rope 52 penetrates through holes on two sides of the front end finger clip 51, the elastic rope 52 is pulled along the axial direction of the finger by hand, the distance to be pulled is determined according to perspective, after the proper position is determined, the fixing rod 53 is screwed into the finger support component 4 through the first threaded hole 43, the elastic rope 52 is fixed on the fixing rod 53, and at this time, the pulling and fixing work is completed.

Then, the fracture position is determined through CT shooting, the needle inserting point and the puncture angle are determined, and the needle inserting point can be marked, so that the subsequent puncture is facilitated; adjusting the finger puncture assembly 6, moving the hand-operated sliding block 66 to slide in the arc-shaped groove of the U-shaped sliding rail 1, and locking the hand-operated sliding block 66 after reaching a proper puncture position; the movement of the second telescopic sleeve 63, the third inner rod 62 and the fourth inner rod 64 in the vertical direction is adjusted to be in accordance with the height size of fingers of a user, the puncture position is ensured to be in the middle of a bone, and the bone is locked after the position is determined; at this time, the rotating table 65 is rapidly adjusted so that the horizontal guide 61 is perpendicular to the patient's finger.

Then, finely adjusting the rotating table 65 according to the puncture angle to rotate around the vertical direction for finely adjusting the angle, and locking the rotating table 65 after determining the puncture angle; inserting the puncture catheter 7 into the horizontal guide rod 61, moving the puncture catheter 7 in the horizontal guide rod 61 until the puncture groove 86 contacts the skin of the finger, and rotating to a proper position to enable the inclined plane of the puncture catheter to be close to the skin of the finger; then the hand-operated sliding block 66 is moved to lock the hand-operated sliding block 66 after the front end of the puncture catheter 7 reaches the needle insertion point; at this time, the needle insertion point and the puncture angle are adjusted, and the needle discharge point is determined. When carrying out finger side position puncture, usable foresee that needle guide 13 punctures fast, known puncture point, and the directional needle point of going out of expansion joint 133 one end among the needle guide 13 is prejudged this moment, and usable the needle point of prejudgement comes angle of adjustment among the puncture process to more visual, and do not need accurate adjustment revolving stage 65, the operation of being more convenient for.

Finally, the Kirschner wire 11 is inserted into the puncture catheter 7 by an electric drill; after the first puncture is finished, the finger puncture assembly 6 is adjusted to a proper position, and the second cross puncture is finished until the operation is finished.

The invention provides a modularized traction fixing device for finger puncture positioning, which can effectively reduce the number of times of perspective shooting during puncture and reduce the X-ray radiation on a patient and an operating doctor; the puncture error caused by difficult positioning is reduced through the accurate positioning of the device, and the accuracy and the safety are improved; the doctor can independently complete the operation by using the device, and the problem of hand shortage or frequent operation and overstrain of the operating doctor is solved.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A traction fixing device for finger puncture positioning comprises a finger support component, a finger puncture component, a finger fixing component and a finger traction component, and is characterized in that,

2. The distraction fixture for finger puncture positioning of claim 1, further comprising a wrist brace assembly comprising a wrist clip, a first inner rod, a first telescoping sleeve, a second inner rod, and a bottom plate, the wrist clip being fixedly connected to a first end of the first inner rod, a second end of the first inner rod being connected to a first end of the first telescoping sleeve, a second end of the first telescoping sleeve being connected to a first end of the second inner rod, and a second end of the second inner rod being fixedly connected to the bottom plate.

3. The traction fixation device for finger puncture location according to claim 1 or 2, wherein in the finger traction assembly, the upper end of the fixing rod is provided with a through slot, the lower end of the fixing rod is connected with the first threaded hole, both sides of the first end of the front finger grip are provided with through holes, and the elastic rope passes through the through holes to be connected with the fixing rod.

4. The traction fixing device for finger puncture positioning according to claim 1 or 2, wherein the U-shaped slide rail is fixedly connected with a first mounting end of the workbench, a bottom plate of the wrist support frame assembly is connected with a second mounting end of the workbench through a G-shaped clamp, the finger rest assembly is located inside the U-shaped slide rail, the wrist support frame assembly, the finger rest assembly and the G-shaped clamp form an operation auxiliary device, and the G-shaped clamps are uniformly distributed on two sides of the bottom plate.

5. The traction fixation device for finger puncture positioning as claimed in claim 1, wherein in the finger rest assembly, the bottom support blocks are evenly distributed on both sides of the bottom of the placement block, the first threaded holes are evenly distributed on the top of the placement block, and the first through holes are evenly distributed on both sides of the placement block; in the finger fixing assembly, the clip fixing holes are uniformly distributed on two sides of the fixer and correspond to the first through holes one to one.

6. The distraction fixture for finger puncture positioning of claim 1, wherein the axis of the third inner rod is perpendicular to the axis of the horizontal guide rod, and the cross-sectional shape of one end of the puncture catheter is arc-shaped or oval.

7. The distraction fixture for finger puncture positioning according to claim 1, wherein the outer tubular wall of the puncture catheter is threadedly connected to the horizontal guide rod of the finger puncture assembly, and the inner wall of the puncture catheter is slidingly connected to the k-wire.

8. The distraction fixture for finger puncture positioning of claim 1, further comprising an additional finger fixation assembly comprising a tension strap fastener, a load floor, and an adhesive layer, the upper end of the load floor being connected to the tension strap fastener and the lower end of the load floor being connected to the adhesive layer.