CN113967062B - Traction fixing device for finger puncture positioning - Google Patents
Traction fixing device for finger puncture positioning Download PDFInfo
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- CN113967062B CN113967062B CN202111210360.0A CN202111210360A CN113967062B CN 113967062 B CN113967062 B CN 113967062B CN 202111210360 A CN202111210360 A CN 202111210360A CN 113967062 B CN113967062 B CN 113967062B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
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Abstract
The invention provides a traction fixing device for finger puncture positioning, which comprises a U-shaped sliding rail, a wrist supporting frame component, a finger rest component, a finger traction component, a finger puncture component, a puncture catheter, a finger fixing component and a G-shaped clamp. The first installation end fixed connection of U type slide rail and workstation, the bottom flat board of wrist support frame subassembly is connected through the second installation end of G type clamp and workstation, indicate to hold in the palm the inside that the subassembly was located U type slide rail, the clip fixed orifices of the fixed subassembly of finger and the dead lever of finger traction assembly are connected with the upper end that indicates to hold in the palm the subassembly respectively, the hand slider of finger puncture subassembly is connected with the upper end of U type slide rail, the outer pipe wall of puncture pipe and the horizontal guide arm threaded connection of finger puncture subassembly, the internal diameter and the kirschner wire sliding connection of puncture pipe. The finger bone fracture puncture device aims at finger bone fracture puncture operation, has complete functions and accurate operation, can avoid interference with other fingers in operation, and has high flexibility.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a traction fixing device for finger puncture positioning.
Background
In the traditional finger puncture operation process, an operator usually determines finger puncture positions and angles according to experience, subjective uncertainty is large, and the method has direct influence on success or failure of operation of a patient, secondary injury of the patient and postoperative rehabilitation 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 phalanx, the fracture can not be fixed due to the too small or too large included angle, the inner wall of the phalanx is smooth, and the Kirschner wire is difficult to stably keep in the optimal puncture angle range in the process of penetrating the Kirschner wire by a doctor through an electric drill. Therefore, the probability of successful needle penetration in the operation process is low, the body of both doctors and patients can be damaged by repeated perspective in the operation, and the Kirschner wire loosening, local osteonecrosis, unstable fracture fixation and the like can be caused by repeated needle penetration.
The existing finger positioning fixator needs auxiliary medical staff, the fixing mode of the positioner is complex, and one person is difficult to independently complete the whole work, so that the operation quality and efficiency are affected. Meanwhile, the existing finger positioning fixator is singly improved in a certain aspect of finger traction or operation puncture, few devices for the whole operation process of finger fracture are arranged, and puncture is usually carried out by depending on experience of doctors, so that the angle and depth control capability remains empirically, and the accuracy and standardization cannot be achieved. For example, in patent CN106175913a, an internal fixation guide for a phalangeal fracture k-wire and a method for using the same, a hand-held device is required for a fixation positioner for puncture guiding, and accurate adjustment of a puncture angle and a puncture depth cannot be achieved.
Disclosure of Invention
Aiming at the problems existing in the prior art, the wrist support frame assembly, the finger support assembly, the finger traction assembly, the finger puncture assembly and the finger fixing assembly are designed according to the modularized design thought respectively in consideration of the reality of the phalangeal fracture operation and in combination with the operation flow, the traction fixing device for finger puncture positioning is designed through modularized recombination, and can assist a surgeon in positioning finger puncture parts, adjusting angles, limiting depths and assisting fracture reduction.
The invention provides a traction fixing device for finger puncture positioning, which comprises a finger rest assembly, a finger puncture assembly, a finger fixing assembly and a finger traction assembly,
the finger rest assembly comprises a placement block and a bottom supporting block, wherein the lower end of the placement 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 placement block, first through holes are formed in two sides of the upper end of the placement block, and the lower end of the bottom supporting block is fixedly connected with the third installation end of the workbench and is positioned in 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 sliding block, 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 sliding block, the second end of the hand-operated sliding block is connected with the upper end of the U-shaped sliding rail, the second end of the horizontal guide rod is connected with a puncture catheter, 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 catheter, 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 telescopic joint;
the finger fixing assembly comprises a tightening handle and a fixer, wherein the appearance of the fixer is of a convex structure, a finger placing hole, a clamping groove and a cylindrical hole are respectively formed in the small end of the fixer, the finger placing hole and the clamping groove are positioned in the middle of the small end of the fixer, the finger placing hole is positioned at the lower end of the clamping groove, a U-shaped groove is formed in the middle of the large end of the fixer, clip fixing holes are formed in two sides of the large end of the fixer, a puncture groove is formed in the junction of the large end and the small end of the fixer, a built-in threaded pin is positioned in the cylindrical hole, the clip fixing hole is connected with a first through hole of the finger rest assembly through a fixing pin, and the tightening 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, wherein 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 support assembly further comprises a wrist clip, a first inner rod, a first telescopic sleeve, a second inner rod and a bottom plate, wherein the wrist clip is fixedly connected with the first end of the first inner rod, the second end of the first inner rod is connected with the first end of the first telescopic sleeve, the second end of the first telescopic sleeve is connected with the first end of the second inner rod, and the second end of the second inner rod is fixedly connected with the bottom 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, the first installation end fixed connection of U type slide rail and workstation, the bottom flat board of wrist support frame subassembly pass through the G type press from both sides 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 and constitutes operation auxiliary device, G type press from both sides evenly distributed in the both sides of bottom flat board.
Further, in the finger rest assembly, the bottom supporting blocks are uniformly distributed on two sides of the bottom of the placement block, the first threaded holes are uniformly distributed on the top of the placement block, and the first through holes are uniformly distributed on two sides of the placement block; in the finger fixing assembly, the clip fixing holes are uniformly distributed on two sides of the fixer, and the clip fixing holes are in one-to-one correspondence with the first through holes.
Further, 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 catheter is arc-shaped or elliptical.
Further, 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-securing assembly is also included that includes a tightening belt buckle, a load floor, and an adhesive layer, the upper end of the load floor being connected to the tightening belt buckle, and the lower end of the load floor being connected to the adhesive layer.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, through a modularized design, the fixed traction and the positioning puncture of the fractured finger are realized by utilizing the organic combination of the finger rest assembly, the finger puncture assembly, the finger fixing assembly and the finger traction assembly, and the puncture can be realized at the finger tip and the finger side direction, so that the device has strong practicability.
2. The wrist support frame assembly is further arranged, and the wrist of the injured finger end 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 rest assembly can effectively and independently fix injured fingers of a patient, can avoid mutual interference with other fingers, and enables operation to be more accurate.
4. The rotating table, the puncture catheter and the telescopic rod of the finger puncture assembly are adjusted to accurately position the puncture part, so that the finger puncture device is not only limited to the problem of finger fracture, but also can be used for the problem of fractures needing puncture, such as wrist joint, ankle joint, toe fracture and the like.
5. The rotating table, the hand-operated sliding block and the telescopic rod of the finger puncture assembly can realize the puncture of any angle and needle insertion points, and can precisely control the needle insertion points, the needle extraction direction and the needle extraction position.
6. According to the invention, the scale sizes are arranged on the inner rods, the rotary table and the puncture guide tube, so that the positioning and puncture operations are more accurate.
Drawings
FIG. 1 is an overall schematic of a traction fixation device for finger puncture positioning of the present invention;
FIG. 2 is an overall right side view of the traction fixation device for finger puncture positioning of the present invention;
FIG. 3 is an isometric view of a finger rest assembly of the present invention;
FIG. 4 is a schematic diagram of the operation of the straight needle puncturing in the present invention;
FIG. 5 is an isometric view of an additional finger securing assembly of the present invention;
FIG. 6 is a schematic illustration of a lateral piercing of a traction fixation device for finger piercing positioning in accordance with the present invention.
The main reference numerals:
the wrist support assembly 2, the wrist clip 21, the first inner rod 22, the first telescopic sleeve 23, the second inner rod 24, the bottom plate 25, the simulated limb 3, the finger rest assembly 4, the bottom support block 41, the first through hole 42, the first threaded hole 43, the placement block 44, the finger traction assembly 5, the front finger clip 51, the elastic cord 52, the fixed rod 53, the finger puncture assembly 6, the horizontal guide rod 61, the third inner rod 62, the second telescopic sleeve 63, the fourth inner rod 64, the rotary table 65, the hand slider 66, the puncture catheter 7, the finger fixing assembly 8, the tightening handle 81, the finger placement hole 82, the U-shaped groove 83, the clamping groove 84, the built-in threaded pin 85, the puncture groove 86, the clip fixing hole 87, the G-clip 9, the workbench 10, the Kirschner wire 11, the additional finger fixing assembly 12, the tightening belt buckle 121, the load-bearing bottom plate 122, the adhesive layer 123, the pre-determined needle guide 13, the curved rod 131, the fifth inner rod 132, and the telescopic joint 133.
Detailed Description
In order to make the technical content, the structural features, the achieved objects and the effects of the present invention more detailed, the following description will be taken in conjunction with the accompanying drawings.
The traction fixing device for finger puncture positioning, as shown in fig. 1 and combined with fig. 2 and 5, comprises a U-shaped sliding rail 1, a wrist supporting frame component 2, a finger rest component 4, a finger traction component 5, a finger puncture component 6, a puncture catheter 7, a finger fixing component 8, a G-shaped clamp 9 and an additional finger fixing component 12, wherein the U-shaped sliding rail 1 can be U-shaped, arc-shaped or semicircular.
The wrist support frame assembly 2 comprises a wrist clamp 21, a first inner rod 22, a first telescopic sleeve 23, a second inner rod 24 and a bottom flat plate 25, wherein the wrist clamp 21 is fixedly connected with the first end of the first inner rod 22, the second end of the first inner rod 22 is connected with the first end of the first telescopic sleeve 23, the second end of the first telescopic sleeve 23 is connected with the first end of the second inner rod 24, the second end of the second inner rod 24 is fixedly connected with the bottom flat plate 25, and the wrist clamp 21 is used for supporting the simulated limb 3.
The finger holds in palm subassembly 4, it includes bottom sprag piece 41, first through-hole 42, first screw hole 43 and places the piece 44, the lower extreme of placing the 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 the upper end of placing the piece 44 are equipped with first through-hole 42, the lower extreme of bottom sprag piece 41 and the third installation end fixed connection of 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 the bottom supporting blocks are uniformly distributed on both sides of the lower end of the placement block 44, the number of the first screw holes 43 is four, and the bottom supporting blocks are uniformly distributed on the upper end of the placement block 44, and the number of the first through holes 42 is twelve, and the bottom supporting blocks are uniformly distributed on both sides of the placement block 44.
The finger traction assembly 5 includes a front finger grip 51, an elastic cord 52 and a fixing rod 53, wherein the elastic cord 52 may be one of a rope, a rubber band or a spring, etc. having elasticity. Considering that the fixing rod 53 interferes with the k-wire 11 when the straight-wire puncture is performed, the upper end of the fixing rod 53 is provided with a through groove, the lower end of the fixing rod 53 is connected with the first threaded hole 43, both sides of the first end of the front finger grip 51 are provided with through holes, and the elastic cord 52 is connected with the fixing rod 53 through the through holes. The k-wire 11 is a surgical instrument for orthopedic fixation, among others.
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-judging needle guide rod 13, a rotary table 65 and a hand-operated sliding block 66, wherein the axis of the third inner rod 62 is mutually perpendicular to the axis of the horizontal guide rod 61, and the section of one end of the puncture catheter 7 is arc-shaped or elliptic.
The first end of the horizontal guide rod 61 is fixedly connected with the first end of the third inner rod 62, the second end of the third inner rod 62 is connected with the first end of the second telescopic sleeve 63, the second end of the second telescopic sleeve 63 is connected with the first end of the fourth inner rod 64, the second end of the fourth inner rod 64 is connected with the first end of the rotary table 65, the second end of the rotary table 65 is connected with the first end of the hand-operated slide block 66, the second end of the hand-operated slide block 66 is slidably connected with the upper end of the U-shaped slide rail 1, and the second end of the horizontal guide rod 61 is connected with the outer tube wall of the puncture catheter 7.
As shown in fig. 6, the needle guide bar 13 is pre-determined and includes a curved bar 131, a fifth inner bar 132 and a telescopic joint 133, a first end of the curved bar 131 is fixedly connected with the mounting end of the puncture catheter 7, a second end of the curved bar 131 is connected with the first end of the fifth inner bar 132, and a second end of the fifth inner bar 132 is fixedly connected with the telescopic joint 133.
As shown in fig. 3, the finger fixing assembly 8 comprises a tightening handle 81 and a fixer, the shape of the fixer is in a convex structure, a small head 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 positioned in the middle of the small head end of the fixer, the finger placing hole 82 is positioned at the lower end of the clamping groove 84, a U-shaped groove 83 is arranged in the middle of the large head end of the fixer, clip fixing holes 87 are arranged on two sides of the large head end of the fixer, a puncture groove 86 is arranged at the junction of the large head end and the small head end of the fixer, a built-in threaded pin 85 is positioned in the cylindrical hole, the clip fixing holes 87 are connected with the first through holes 42 of the finger support assembly 4 through fixing pins, and the tightening handle 81 is connected with the built-in threaded pin 85.
Specifically, the inner walls of the finger placing holes 82 and the front end finger clips 51 can be inlaid with a protective layer such as sponge, so that fingers can be better protected, secondary damage to the fingers by instruments is prevented, the radius of the finger placing holes 82 is adjustable, the number of the clip fixing holes 87 is twelve, the clip fixing holes 87 are in one-to-one correspondence with the first through holes 42 and are uniformly distributed on two sides of the fixer, the U-shaped grooves 83 are identical to the placing blocks 44 in width, and the finger fixing assembly 8 and the finger rest assembly 4 are fixedly connected through fixing pins or nut screws.
As shown in fig. 4, the U-shaped slide rail 1 is fixedly connected with a first mounting end of the workbench 10, the bottom flat plate 25 of the wrist support frame assembly 2 is connected with a second mounting end of the workbench 10 through a G-shaped clamp 9, and the fixing part for fixing the workbench 10 and the bottom flat plate 25 in the wrist support frame assembly can be any one of connection forms of G-shaped clamp 9, screw connection or cementing; the finger rest assembly 4 is located in the U-shaped sliding rail 1, the clamp fixing hole 87 of the finger fixing assembly 8 and the fixing rod 53 of the finger traction assembly 5 are respectively connected with the first through hole 42 and the first threaded hole 43 of the finger rest assembly 4, the hand-operated sliding block 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 catheter 7 is in threaded connection with the horizontal guide rod 61 of the finger puncture assembly 6, the inner wall of the puncture catheter 7 is in sliding connection with the Kirschner wire 11, and the finger rest assembly 4, the wrist support frame assembly 2 and the finger puncture assembly 6 are matched in the actual operation process. Preferably, the wrist support assembly 2, the finger rest assembly 4 and the G-shaped clips 9 form a surgical auxiliary device, specifically, the number of the G-shaped clips 9 is two, and the G-shaped clips 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 k-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 weight reduction of the device and the accuracy of the surgical procedure, the finger rest assembly 4, the wrist support 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 clip 51 and the fixing rod 53 in the finger fixing assembly 5 and the finger fixing clip assembly 8 are made of plastic materials with lighter weight, and can be made of one of nylon or metal materials without taking the weight reduction into consideration.
To ensure the accuracy of the device adjustment, graduation values are provided on the surfaces of the first inner rod 22, the first telescopic sleeve 23 and the second inner rod 24 in the wrist support 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; in order to ensure the visualization of the penetration depth during the operation, a scale value is provided on the penetration catheter 7.
In another aspect of the present invention, as shown in FIG. 5, another way to secure a finger is to attach the finger securing assembly 12, which includes a tightening belt buckle 121, a load floor 122, and an adhesive layer 123, the upper end of the load floor 122 being attached to the tightening belt buckle 121, and the lower end of the load floor 122 being attached to the adhesive layer 123. Through adhesive layer 123 and finger rest subassembly 4 fixed connection, load-bearing bottom plate 122 is used for placing injured finger, and taut belt clamp 121 passes through groove and load-bearing bottom plate 122 fixed connection, according to the radial size of finger, the elasticity condition of adjustable taut belt clamp 121 to reach the fixed effect of extrusion.
The invention is further described below with reference to an example of a traction fixation device for finger puncture positioning:
based on the functions of the device, the specific working steps of the invention are as follows:
according to basic steps of operation, the operation process planning is carried out on the device of the invention, a CT examination is carried out on a preoperative user, the bone fracture condition of the phalangeal bone of the user is observed through the CT examination, the user enters an operating room, the user lies on an operating table in a prone position, the operating table is placed on one side of the finger of the patient, the traction fixing device for finger puncture positioning is placed on the proper position of the operating table, the bottom flat plate 25 of the wrist support frame assembly 2 is fixed by the G-shaped clamp 9 in the operation auxiliary device, the finger fixing assembly 8 is arranged on the finger support assembly 4, the U-shaped groove 83 clamps the upper part of the placing block 44, the clamp fixing holes 87 are in one-to-one correspondence with the first through holes 42, and the fixing holes are fixed through fixing pins.
Firstly, placing the wrist and fracture fingers of a user into the wrist clamp 21 of the wrist support frame assembly 2 and the finger placing hole 82 of the finger fixing assembly 8 respectively, and adjusting the wrist placing height to the most suitable position through the first telescopic sleeve 23, the first inner rod 22 and the second inner rod 24 in the wrist support frame assembly 2; the finger rest assembly 4 is properly adjusted to enable the middle rear end of the injured finger to be located in the middle of the finger placement hole 82, the other four fingers are bent and then placed below the front side of the finger rest assembly 4, mutual interference among the fingers is avoided, the device is adjusted to the position most convenient for operation, the finger rest assembly is well fixed, the finger is pressed inwards by the clamping groove 84 through the tightening handle 81 in the finger fixing assembly 8, and the purposes of finger fixing and two-side split bone extrusion reset are achieved.
Then, the front end finger clip 51 is sleeved into the front end of the finger of a patient, the opening 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 fixing is finished, the elastic ropes 52 are penetrated through the through holes on the two sides of the front end finger clip 51, the elastic ropes 52 are pulled by hands along the axial direction of the finger, 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 rest assembly 4 through the first threaded hole 43, the elastic ropes 52 are fixed on the fixing rod 53, and at the moment, the pulling and fixing work is finished.
Then, through CT shooting, the fracture position is determined, the needle insertion point and the puncture angle are determined, and the needle insertion point can be marked, so that the subsequent puncture is facilitated; the finger puncture assembly 6 is adjusted, the hand-operated sliding block 66 is moved to slide in the arc-shaped groove of the U-shaped sliding rail 1, and the hand-operated sliding block 66 is locked after the finger puncture assembly reaches 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 line with the height dimension of the fingers of the user, the puncture position is ensured to be positioned in the middle position of the bone, and the puncture position is locked after the position is determined; at this time, the rotation table 65 is rapidly adjusted so that the horizontal guide bar 61 is perpendicular to the finger of the patient.
Then, the rotating table 65 is finely adjusted according to the puncture angle, so that the rotating table 65 rotates around the vertical direction to finely adjust the angle, and the rotating table 65 is locked after the puncture angle is determined; inserting the puncture catheter 7 into the horizontal guide rod 61, so that the puncture catheter 7 moves in the horizontal guide rod 61 until the puncture catheter contacts the finger skin through the puncture groove 86, and rotating the puncture catheter to a proper position, and enabling the inclined surface of the puncture catheter to be close to the finger skin; then the hand-operated sliding block 66 is moved, so that the hand-operated sliding block 66 is locked 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 extraction point is also determined. When the finger side direction puncture is performed, the pre-judging needle guide rod 13 can be utilized to rapidly puncture, the puncture point is known, at the moment, one end of the telescopic joint 133 in the pre-judging needle guide rod 13 points to the needle outlet point, the pre-judging needle point can be utilized to adjust the angle in the puncture process, so that the angle is visualized more, the rotating table 65 is not required to be accurately adjusted, and the operation is facilitated.
Finally, an electric drill is used for penetrating the Kirschner wire 11 through the puncture catheter 7; after the first puncture is completed, the finger puncture assembly 6 is adjusted to a proper position, and the second cross puncture is completed until the operation is finished.
The invention provides a modularized traction fixing device for finger puncture positioning, which can effectively reduce the times of perspective shooting during puncture and reduce the radiation of X rays to patients and surgeons; the puncture error caused by difficult positioning is reduced by the accurate positioning of the device, and the accuracy and the safety are improved; by using the device, a doctor can independently complete the operation, and the problems of shortage of hands of the doctor or frequent operation strain are relieved.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. A traction fixing device for finger puncture positioning comprises a finger rest assembly, a finger puncture assembly, a finger fixing assembly and a finger traction assembly, and is characterized in that,
the finger rest assembly comprises a placement block and a bottom supporting block, wherein the lower end of the placement 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 placement block, first through holes are formed in two sides of the upper end of the placement block, and the lower end of the bottom supporting block is fixedly connected with the third installation end of the workbench and is positioned in 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 sliding block, 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 sliding block, the second end of the hand-operated sliding block is connected with the upper end of the U-shaped sliding rail, the second end of the horizontal guide rod is connected with a puncture catheter, 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 catheter, 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 telescopic joint;
the finger fixing assembly comprises a tightening handle and a fixer, wherein the appearance of the fixer is of a convex structure, a finger placing hole, a clamping groove and a cylindrical hole are respectively formed in the small end of the fixer, the finger placing hole and the clamping groove are positioned in the middle of the small end of the fixer, the finger placing hole is positioned at the lower end of the clamping groove, a U-shaped groove is formed in the middle of the large end of the fixer, clip fixing holes are formed in two sides of the large end of the fixer, a puncture groove is formed in the junction of the large end and the small end of the fixer, an internal threaded pin is positioned in the cylindrical hole, the clip fixing hole is connected with a first through hole of the finger rest assembly through a fixing pin, and the tightening handle is connected with the internal threaded pin;
the finger traction assembly comprises a finger clamp at the front end, an elastic rope and a fixing rod, wherein 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;
the upper end of the fixed rod is provided with a through groove, the lower end of the fixed rod is connected with the first threaded hole, through holes are formed in two sides of the first end of the front end finger clip, and the elastic rope penetrates through the through holes and is connected with the fixed rod.
2. The traction fixation device for finger puncture positioning of claim 1, further comprising a wrist support 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, a second end of the second inner rod being fixedly connected to the bottom plate.
3. The traction fixing device for finger puncture positioning according to claim 2, wherein the U-shaped slide rail is fixedly connected with a first mounting end of a workbench, a bottom plate of the wrist support assembly is connected with a second mounting end of the workbench through a G-shaped clamp, the finger rest assembly is located in the U-shaped slide rail, the wrist support 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.
4. The traction fixation device for finger puncture positioning according to claim 1, wherein in the finger rest assembly, the bottom support blocks are uniformly distributed on both sides of the bottom of the placement block, the first threaded holes are uniformly distributed on the top of the placement block, and the first through holes are uniformly 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 the clip fixing holes are in one-to-one correspondence with the first through holes.
5. The traction fixation device for finger puncture positioning according to claim 1, wherein the axis of the third inner rod is perpendicular to the axis of the horizontal guide rod, and one end section of the puncture catheter is arc-shaped or elliptical-shaped.
6. The traction fixation device for finger puncture positioning according to claim 1, wherein an outer tube wall of the puncture catheter is in threaded connection with a horizontal guide rod of the finger puncture assembly, and an inner wall of the puncture catheter is in sliding connection with a k-wire.
7. The traction fixation device for finger puncture positioning of claim 1, further comprising an additional finger fixation assembly comprising a tightening belt buckle, a load floor, and an adhesive layer, the upper end of the load floor being coupled to the tightening belt buckle, the lower end of the load floor being coupled to the adhesive layer.
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| CN202111210360.0A CN113967062B (en) | 2021-10-18 | 2021-10-18 | Traction fixing device for finger puncture positioning |
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| CN202111210360.0A CN113967062B (en) | 2021-10-18 | 2021-10-18 | Traction fixing device for finger puncture positioning |
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| CN113967062B true CN113967062B (en) | 2023-10-20 |
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| CN113967062A (en) | 2022-01-25 |
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