CN213249542U

CN213249542U - Puncture navigation system

Info

Publication number: CN213249542U
Application number: CN201820406683.4U
Authority: CN
Inventors: 王利民; 刘锴
Original assignee: Hebei Haisikaier Hospital Management Co ltd
Current assignee: Hebei Haisikaier Hospital Management Co ltd
Priority date: 2018-03-22
Filing date: 2018-03-22
Publication date: 2021-05-25
Anticipated expiration: 2028-03-22

Abstract

The utility model belongs to the technical field of the particle puncture, a puncture navigation, including the regulating arm that is used for realizing the three-dimensional direction and removes, be provided with micromatic setting on the regulating arm, micromatic setting is including setting up axle sleeve one on the regulating arm, an axle sleeve internal rotation is provided with vertical bull stick, be provided with axle sleeve two on the vertical bull stick, be provided with horizontal bull stick in the axle sleeve two, the tip of horizontal bull stick is provided with the round pin axle, sell epaxial pjncture needle clamping device that is provided with, pjncture needle clamping device is in including rotating the epaxial rotation piece of round pin, it is semi-circular or fan-shaped to rotate the piece, is provided with the vertical pinhole of holding on it. The rotating piece is provided with an angular line, and the transverse rotating rod is provided with a pointer for indicating the rotating angle of the rotating piece. The utility model provides a puncture operation of pjncture needle among the prior art hardly reach accurate, regular technical problem.

Description

Puncture navigation system

Technical Field

The utility model belongs to the technical field of the particle puncture, a puncture navigation system is related to.

Background

The particle implantation is called as "radioactive particle implantation therapy technology", and is a therapeutic method for implanting a radioactive source into a tumor to destroy the tumor. The seed implantation treatment technology relates to a radioactive source, and the core of the seed implantation treatment technology is a radioactive seed. However, the particle implantation operation in the prior art is completely based on the clinical operation experience of doctors, and although a simple particle implantation template is used as a guide, accurate and regular puncture needle implantation may need two to three decades of clinical experience of doctors to realize accurate and regular puncture needle implantation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a puncture navigation system has solved the above-mentioned problem among the prior art.

The technical scheme of the utility model is realized like this:

a puncture navigation system comprises

The adjusting arm is used for realizing three-dimensional movement, the adjusting arm is provided with a fine adjustment device, the fine adjustment device comprises a first shaft sleeve arranged on the adjusting arm, a vertical rotating rod is arranged in the first shaft sleeve in a rotating mode, a second shaft sleeve is arranged on the vertical rotating rod, a transverse rotating rod is arranged in the second shaft sleeve, a pin shaft is arranged at the end part of the transverse rotating rod, and a puncture needle clamping device is arranged on the pin shaft,

the puncture needle clamping device comprises a rotating part which is rotatably arranged on the pin shaft, the rotating part is semicircular or fan-shaped, and a vertical needle holding hole is formed in the rotating part.

As a further technical solution, the rotating member is provided with an angular line, and the transverse rotating rod is provided with a pointer for indicating a rotation angle of the rotating member.

As a further technical scheme, the adjusting arm is arranged on a treatment bed, a plurality of metal wires for positioning are arranged on the treatment bed, the metal wires are arranged at equal intervals, and the length equal difference is reduced.

As a further technical scheme, the needle holding hole is defined by two semicircular rings which are hinged with each other, wherein one semicircular ring is arranged on the rotating piece, and the needle holding hole also comprises a fastening piece which fastens the two semicircular rings.

As a further technical scheme, the needle holding hole is formed by enclosing an arc-shaped piece and an arc-shaped plate, an arc-shaped groove is formed in one side, close to the inner wall of the arc-shaped piece, of the inner portion of the arc-shaped piece, and the arc-shaped plate is arranged in the arc-shaped groove in a sliding mode.

As a further technical scheme, the transverse rotating rod comprises a cylindrical section and a narrowing section, the cylindrical section is used for extending into the pin shaft, the narrowing section is connected with the cylindrical section, the narrowing section is of a thin plate shape, the pin shaft is arranged at the end portion of the narrowing section, and a first scale mark is arranged on the cylindrical section.

As a further technical scheme, the two sides of the treatment bed are provided with transverse rails, the adjusting arm comprises a vertical rail slidably arranged on the transverse rails, a first cross arm moving up and down is arranged on the vertical rail, a sliding block is arranged on the first cross arm, a second cross arm perpendicular to the first cross arm is slidably arranged on the sliding block, the first shaft sleeve is arranged at the end part of the second cross arm, and the first cross arm and the second cross arm are both provided with second scale marks.

As a further technical proposal, the treatment bed is provided with three bulges which are arranged in sequence and used for distinguishing the bed head and the bed tail.

The utility model discloses theory of use and beneficial effect do:

1. the puncture needle clamping device of the puncture navigation system can well realize puncture navigation of all parts of a body through the matching of the adjusting arm which translates in the three-dimensional direction and the fine adjustment device which rotates and adjusts in the three-dimensional direction, particularly can realize the puncture navigation of the parts at two sides of the body, has the function different from the prior art, has more comprehensive functions and wider application range, can better adapt to the fine adjustment of all parts of the body through coarse translation adjustment in the three directions and fine rotation adjustment in the three directions although only changing translation and rotation movement, and is very convenient and fast to operate, the vertical rotating rod of the fine adjustment device can realize the front-back swing adjustment in the horizontal plane in the first shaft sleeve, the horizontal rotating rod can realize the front-back swing adjustment in the vertical plane in the second shaft sleeve, and the rotating part of the puncture needle clamping device can realize the left-right adjustment in the vertical plane through the rotation, the puncture needle clamping device is specially designed for putting and taking out the puncture needle and adjusting the puncture needle, the rotating piece is semicircular or fan-shaped, the structure is simple, the adjustment is convenient, the needle holding hole in the rotating piece is used for guiding, an operator can accurately and stably penetrate the puncture needle through the needle holding hole, and the operation is also accurately adjusted by aligning the pointer with the angle line before the puncture, so that the operation is well and quickly realized.

2. The needle holding hole is formed by surrounding two semicircular rings, so that the puncture needle clamping device can be taken down from the puncture needle after the puncture is implanted conveniently for practice, and the two semicircular rings are fastened by the fastening piece, so that the deviation of the puncture angle can not be caused by misoperation in the practical process.

3. The needle holding hole is formed by enclosing the arc-shaped part and the arc-shaped plate, the arc-shaped part can be opened or closed after the arc-shaped plate rotates, the arc-shaped plate is arranged in the arc-shaped groove of the arc-shaped part, and therefore the puncture needle can be operated conveniently, and the puncture needle can be placed into the puncture needle and can be punctured into a patient and then taken out of the puncture needle clamping device.

4. In this embodiment, hold the structure of pinhole more convenient and practical, enclose by holding the needle cover, and the fastener that the spring withstood of needle outlet department can be fine take out fast of realization pjncture needle, the fastener sets up and is holding the needle cover, after the pjncture needle puncture is accomplished in the operation, operating personnel only need to remove the pjncture needle to needle outlet, the fastener will be opened under the effort of pjncture needle, thereby realize taking out of pjncture needle, and the tip of fastener is the fillet trapezoidal, consequently, can guarantee opening more smoothly nature of fastener, and simultaneously, the stable removal of the spacing pjncture needle of fastener on its inside rectilinear direction can be guaranteed to the shape size that designs suitable, thereby fine improvement has been made for the smooth and easy operation of.

5. The regulating arm sets up on the treatment bed, is provided with a plurality of wires that are used for the location on the treatment bed, through the fine realization of simple structure with the cooperation location of CT image, the wire shows in can the CT image, can be fine realization puncture position's when pjncture needle is implanted accurate location to length difference and the interval through the adjustment wire also can carry out further improvement to the progress.

6. In this embodiment, two sections of structures of horizontal bull stick sectional type, the cylinder section can guarantee the rotation in axle sleeve two that the stability of structure is also fine, the fine intensive implantation of the pjncture needle that has improved of the design of narrowing section for the interval of pjncture needle can be fine reduces, and convenient operation of operation has been guaranteed simultaneously with the semicircle plate-type or the fan-shaped cooperation of rotating the piece down.

7. The both sides of treatment bed are provided with horizontal track, and first xarm on the vertical track of regulating arm can shift up the removal, and the slider can move back and forth on first xarm, and the second xarm can remove about on the slider to fine realization three-dimensional direction's coarse adjustment has guaranteed the further progress of follow-up work, is provided with the arch that three set gradually on the treatment bed in this embodiment, and three bellied interval equals, can distinguish head of a bed tailstock, and the anti-dress of air cushion bed is avoided with the realization that three recess cooperation under the air cushion bed can be fine.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the puncture needle holder according to the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of a needle holding hole of the present invention;

FIG. 4 is a schematic structural diagram of another embodiment of a needle holding hole of the present invention;

FIG. 5 is a schematic structural diagram of a further embodiment of a needle holding hole of the present invention;

FIG. 6 is a schematic structural view of an embodiment of a particle implantation apparatus according to the present invention;

FIG. 7 is a schematic view of a particle implantation apparatus according to another embodiment of the present invention;

FIG. 8 is a schematic structural view of a further embodiment of a particle implantation apparatus according to the present invention;

FIG. 9 is a schematic view of a further embodiment of a particle implantation apparatus according to the present invention;

FIG. 10 is a schematic view of a ratchet bar according to the present invention;

FIG. 11 is a schematic view of the structure of a top bead of the present invention;

in the figure: 1-lower butting seat, 2-guide rod, 3-upper pushing seat, 4-limiting seat, 5-guide hole, 6-elastic part, 7-adjusting nut, 8-notch, 9-circular hole, 10-tooth, 11-gear, 12-ratchet wheel, 13-first pawl, 14-ratchet strip, 15-second pawl, 16-manual switch, 17-open hole, 18-blind hole, 19-spring, 20-top ball, 21-circular groove, 29-second guide rod, 32-adjusting arm, 321-vertical track, 322-first cross arm, 323-sliding block, 324-second cross arm, 325-scale line two, 33-fine adjusting device, 34-shaft sleeve one, 35-vertical rotating rod and 36-shaft sleeve two, 37-transverse rotating rod, 371-cylindrical section, 372-narrowing section, 373-graduation line I, 38-pin shaft, 39-puncture needle clamping device, 391-rotating part, 392-needle holding hole, 3921-semicircular ring, 3922-arc part, 3923-arc plate, 3924-arc groove, 3925-needle holding sleeve, 3926-needle outlet, 3927-clamping piece, 393-angular scale line, 394-pointer, 40-treatment bed, 41-metal wire, 42-transverse track and 43-protrusion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in FIGS. 1 to 5, the puncture navigation system provided by the present invention comprises

An adjusting arm 32 for realizing three-dimensional direction movement, a fine adjusting device 33 is arranged on the adjusting arm 32, the fine adjusting device 33 comprises a first shaft sleeve 34 arranged on the adjusting arm 32, a vertical rotating rod 35 is arranged in the first shaft sleeve 34 in a rotating mode, a second shaft sleeve 36 is arranged on the vertical rotating rod 35, a transverse rotating rod 37 is arranged in the second shaft sleeve 36, a pin shaft 38 is arranged at the end part of the transverse rotating rod 37, a puncture needle clamping device 39 is arranged on the pin shaft 38,

the needle holder 39 includes a rotating member 391 rotatably mounted on the pin 38, the rotating member 391 being formed in a semicircular or fan shape and provided with a vertical needle holding hole 392.

Further, the rotating member 391 is provided with an angular line 393, and the lateral rotating lever 37 is provided with a pointer 394 for indicating the rotation angle of the rotating member 391.

In this embodiment, the puncture needle holding device 39 of the puncture navigation system can achieve puncture navigation of all parts of the body well by matching the adjusting arm 32 which translates in three-dimensional direction and the fine adjusting device 33 which rotationally adjusts in three-dimensional direction, particularly, the puncture navigation system can also achieve parts on two sides of the body, which has the function different from the prior art, has more comprehensive functions and wider application range, although only translation and rotational movement are changed, fine adjustment of each part of the body is more adapted by coarse translation adjustment in three directions and fine rotation adjustment in three directions, and the operation is very convenient, the vertical rotating rod 35 of the fine adjusting device 33 can achieve front-back swing adjustment in a horizontal plane in the first shaft sleeve 34, the horizontal rotating rod 37 can achieve front-back swing adjustment in a vertical plane in the second shaft sleeve 36, and the rotating piece 391 of the puncture needle holding device 39 can achieve left-right adjustment in the vertical plane by rotation on the pin 38, the puncture needle clamping device 39 is specially designed for placing and taking out puncture needles and adjusting the puncture needles, the rotating piece 391 is semicircular or fan-shaped, the structure is simple, the adjustment is convenient, the needle holding hole 392 in the rotating piece 391 is used for guiding, an operator can accurately and stably penetrate the puncture needles through the needle holding hole 392, and the puncture needles are accurately adjusted by aligning the pointer 394 with the angle groove 393 before puncturing, so that the rapid operation is well guaranteed. The transverse rotating rod 37 is arranged in the second shaft sleeve 36, the transverse rotating rod 37 is convenient to adjust due to the rotating design, the transverse rotating rod 37 can be well replaced along with the puncture needle clamping device 39, and the transverse rotating rod is designed to be disposable, so that the preparation of an operator for each operation is greatly facilitated.

Example 2

Including all the structures of example 1, the needle holding hole 392 is formed by two semi-circular rings 3921 hinged to each other, wherein one semi-circular ring 3921 is arranged on the rotating member 391, and a fastening member is further included for fastening the two semi-circular rings 3921.

In this embodiment, the needle holding hole 392 is defined by two semicircular rings 3921, so that the puncture needle holding device 39 can be removed from the puncture needle after the puncture is implanted conveniently, and the two semicircular rings 3921 are fastened by the fastening member, so that the deviation of the puncture angle caused by the misoperation in the practical process can be avoided.

Example 3

Including all the structures of example 1, the needle holding hole 392 is defined by an arc-shaped piece 3922 and an arc-shaped plate 3923, an arc-shaped groove 3924 is arranged on one side of the inner wall of the arc-shaped piece 3922, and the arc-shaped plate 3923 is arranged in the arc-shaped groove 3924 in a sliding mode.

In this embodiment, the needle holding hole 392 is defined by the arc-shaped piece 3922 and the arc-shaped plate 3923, the arc-shaped piece 3922 can be opened or closed after the arc-shaped plate 3923 rotates, the arc-shaped plate 3923 is arranged in the arc-shaped groove 3924 of the arc-shaped piece 3922, so that the operation can be very convenient, and the puncture needle holding device 39 can be well taken out after the puncture needle is put into and punctured into a patient.

Example 4

Contain all structures of embodiment 1, hold needle hole 392 by excellent arc type hold needle cover 3925 and enclose, one side of holding needle cover 3925 is a needle outlet 3926, the both sides of needle outlet 3926 are provided with spring action's fastener 3927, can be the torsional spring, also can be ordinary spring, fastener 3927 articulates and sets up on holding needle cover 3925, the pivot sets up in holding needle cover 3925 outer wall position, thereby make fastener 3926 only outwards pass, thereby realize that the pjncture needle can go out from the needle outlet 3926 of holding needle cover 3925 one side, and insert and hold the needle cover only need from the top penetrate can, the tip of fastener 3926 is circular.

In this embodiment, the structure of holding needle hole 392 is more convenient practical, enclose by holding needle cover 3925, and the realization pjncture needle that the card 3927 of needle outlet 3926 department spring action can be fine takes out fast, card 3927 sets up on holding needle cover 3925, after the operation pjncture needle puncture is accomplished, operating personnel only need to remove the pjncture needle to needle outlet 3926, card 3927 will open under the effort of pjncture needle, thereby realize taking out of pjncture needle, and the tip of card 3926 is circular, consequently, can guarantee opening of card 3926 more smoothly nature, and simultaneously, the suitable shape and size of design can guarantee the stable removal of the spacing pjncture needle of card 3926 in its inside rectilinear direction, thereby make fine improvement for the smooth operation of performing the operation.

Example 5

Including all the structures of embodiment 1, the adjusting arm 32 is arranged on the treatment couch 40, a plurality of wires 41 for positioning are arranged on the treatment couch 40, the wires 41 are arranged at equal intervals, and the length equal difference is reduced.

Further, the transverse rotating rod 37 comprises a cylindrical section 371 used for extending into the pin shaft 38 and a narrowing section 372 connected with the cylindrical section 371, the narrowing section 372 is of a thin plate type, the pin shaft 38 is arranged at the end part of the narrowing section 372, and a scale mark 373 is arranged on the cylindrical section 371.

In this embodiment, the adjusting arm 32 is disposed on the treatment couch 40, the plurality of wires 41 for positioning are disposed on the treatment couch 40, the wires 41 can be displayed in the CT image through the simple structure, the precise positioning of the puncture position can be achieved well when the puncture needle is implanted, and the progress can be further improved by adjusting the length difference and the distance between the wires 41.

In this embodiment, the two-segment structure of the sectional type of the transverse rotating rod 37 and the cylindrical segment 371 can ensure that the stability of the structure is well realized to rotate in the second shaft sleeve 36, the design of the narrowing segment 372 is well improved to intensively implant the puncture needle, so that the interval of the puncture needle can be well reduced, and meanwhile, the convenient operation of the operation is ensured under the semi-circular plate shape or fan-shaped matching of the rotating part 391.

Furthermore, the two sides of the treatment couch 40 are provided with the transverse rails 42, the adjusting arm 32 comprises a vertical rail 321 slidably disposed on the transverse rails 42, the vertical rail 321 is provided with a first cross arm 322 moving in the up-down direction, the first cross arm 322 is provided with a sliding block 323, the sliding block 323 is slidably provided with a second cross arm 324 perpendicular to the first cross arm 322, the first shaft sleeve 34 is disposed at the end of the second cross arm 324, and the first cross arm 322 and the second cross arm 324 are both provided with second scale marks 325.

Further, three protrusions 43 arranged in sequence for distinguishing the head and the tail of the bed are arranged on the treatment bed 40.

In this embodiment, the two sides of the treatment bed 40 are provided with the transverse rails 42, the first cross arm 322 on the vertical rail 321 of the adjusting arm 32 can move up and down, the slider 323 can move back and forth on the first cross arm 322, and the second cross arm 324 can move left and right on the slider 323, so as to achieve coarse adjustment in the three-dimensional direction well, and ensure further proceeding of subsequent work.

Example 6

Contain all structures of embodiment 1, rotate and still be provided with the particle implantation device beside 391, through the continuous improvement to the particle implantation device, can realize that pjncture needle puncture and carry out the particle implantation and go on in step to need not to accomplish whole pjncture needle puncture earlier and carry out the particle implantation, as shown in fig. 6, the particle implantation device is including being used for supporting the patient and leading the lower seat 1 that supports of pjncture needle, support the seat 1 down and set up on guide arm 2, the sliding is provided with the last seat 3 that pushes up that is used for the rebound pjncture needle on guide arm 2, still sliding is provided with the spacing seat 4 that is used for limiting the distance that pushes up seat 3 moved up on pushing up seat 3, spacing seat 4 is located the top of pushing up seat 3.

In the implementation, the lower support seat 1 in the particle implantation device is used for supporting a patient, then a doctor holds the guide rod with one hand, the thumb index finger of the other hand presses the upper push seat 3 and the limit seat 4, and a certain damping exists between the upper push seat 3 and the limit seat 4, therefore, when in use, only the force is controlled simply, the two directions of moments are different in magnitude by utilizing different action points acting on the upper push seat 3 and the limit seat 4, so that one of the two is kept static with the guide rod 2 and the other is kept sliding with the guide rod 2, the upper push seat 3 can approach the limit seat 4, thereby realizing the upward movement of the precise distance set by the upper push seat 4, driving the outer needle of the puncture needle to move upward, at the moment, the precise positioning implantation of particles can be realized by matching the puncture gun with the inner needle of the puncture needle, then the upper push seat 3 and the guide rod 2 are pressed by hand, the limit seat 4 is, the next particle is implanted by repeated operation, so that the implantation fixed-interval accurate implantation of each radioactive particle is realized, the problems of inaccuracy and non-uniformity of the particle implantation are well solved, and the real tool is simple in structure and convenient to operate and can conveniently realize the required medical effect.

Example 7

Including all the structures of embodiment 6, as shown in fig. 7, the second guide rod 29 is disposed on the limiting seat 4, and the second guide rod 29 passes through the guide hole 5 on the pushing-up seat 3. An elastic part 6 is arranged between the upward pushing seat 3 and the limiting seat 4, and an adjusting nut 7 used for adjusting the maximum distance between the limiting seat 4 and the upward pushing seat 3 under the action of the elastic part 6 is arranged on the second guide rod 29.

In this embodiment, the second guide rod 29 is specially added to the push-up base 3 and the limiting base 4 in addition to the guiding movement on the guide rod 2, so as to better realize the static and relative movement between the push-up base 3 and the limiting base 4 and the guide rod 2, respectively, one is static and one is relative movement, so as to better realize the quantitative movement of the push-up base 3 driving the puncture needle, when the limiting base 4 is controlled to be static relative to the guide rod 2, the push-up base 3 moves relative to the guide rod 2 to realize the upward movement of the puncture needle, when the push-up base 3 is limited by the limiting base 4, the elastic member 6 can be added to automatically push up the limiting base 4 to a limited distance by the elastic member 6, thereby well realizing the automatic upward movement of the limiting base 4, preparing for the next particle implantation, ensuring the convenient and effective use, the elastic member 6 can be a spring matched with the second guide rod 29 to more stably and effectively realize that the push-up base 3 drives the puncture needle, The elastic piece 6 drives the limiting seat 4 to move upwards and reset, so that the smoothness of the whole operation is ensured.

Example 8

Including all structures of embodiment 6, the lower support seat 1 and one side of the upper pushing seat 3 are both provided with a gap 8, the gap 8 is gradually reduced from the edge to the inside, and the innermost part is a circular hole 9 for penetrating the puncture needle.

In the embodiment, the notch 8 is triangular, the circular hole 9 is arranged at the innermost part, the structure which is originally designed not only ensures the accurate movement of the puncture needle in the vertical direction, but also well realizes the taking out of the puncture needle in the middle process, and the use under more conditions is realized.

Example 9

Including all the structures of embodiment 6, as shown in fig. 8, the guide rod 2 is provided with teeth 10, the limiting seat 4 and the pushing-up seat 3 are both provided with gears 11 engaged with the teeth 10, the gears 11 are coaxially provided with ratchet wheels 12, and the outer edges of the ratchet wheels 12 are provided with first pawls 13.

In this embodiment, tooth 10 on the guide arm 2 can be more accurate the improvement push up seat 3 and spacing seat 4 the removal precision, thereby fine assurance the realization of equidistant of particle implantation, and driven gear 11 still coaxial is provided with ratchet 12, with the fine one-way upwards removal promptly of pushing up seat 3 and spacing seat 4 of having realized of first pawl 13, can not cause the fine malfunction that moves down of pushing up seat 3 that appears occasionally because of the effect of elastic component 6 in operation process, and moreover, the steam generator is simple in structure, the effect is obvious, make the operation convenient freely more, the holistic product quality has been improved, unexpected effect has been played.

Example 10

All the structures including embodiment 6 are shown in fig. 9, 10 and 11, the guide rod 2 is provided with a ratchet 14, and the limiting seat 4 and the push-up seat 3 are provided with a second pawl 15 which is matched with the ratchet 14. The second pawl 15 is provided with a manual switch 16, one side of the limiting seat 4 and one side of the push-up seat 3 are both provided with an opening 17, and the manual switch 16 extends into the opening 17.

In this embodiment, the one-way movement of the limiting seat 4 and the pushing-up seat 3 is realized by the mutual cooperation of the ratchet 14 on the guide rod 2 and the second pawls 15 on the limiting seat 4 and the pushing-up seat 3, the structure is simpler, the effect is more obvious, and the product quality is further improved. Meanwhile, the manual switch 16 on the second pawl 15 can retract into the second pawl 15, and the manual switch 16 can be opened when the following particles are required to be implanted after the implantation of the particles is completed, so that the re-reset of the limiting seat 4 and the upward pushing seat 3 can be realized, the rapid implantation of the next row of particles is ensured, the practicability of the product is well improved, and unexpected effects are also achieved.

Example 11

Including all the structures of embodiment 6, as shown in fig. 11, a blind hole 18 is provided in the limiting seat 4, a supporting bead 20 supported by a spring 19 is provided in the blind hole 18, a plurality of circular grooves 21 are provided on the guide rod 2, the supporting bead 20 is exposed out of the blind hole 18 and extends into the circular groove 21. The guide rod 2 is provided with scale marks.

In this embodiment, spacing seat 4 can also act on the tight effect in top of top pearl 20 through spring 19, carry out more convenient and practical's location, played fine location auxiliary action, top pearl 20 is pushed up the circular recess 21 in the back can be fine by spring 19, consequently spacing seat 4 can not be free at will and put down more or little displacement for each row of particle implantation more evenly distributed, the operation is also convenient automatic more, fine effect has been played, medical staff's operational reliability has been guaranteed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A puncture navigation system is characterized by comprising an adjusting arm (32) used for realizing three-dimensional direction movement, wherein a fine adjustment device (33) is arranged on the adjusting arm (32), the fine adjustment device (33) comprises a first shaft sleeve (34) arranged on the adjusting arm (32), a vertical rotating rod (35) is rotationally arranged in the first shaft sleeve (34), a second shaft sleeve (36) is arranged on the vertical rotating rod (35), a transverse rotating rod (37) is arranged in the second shaft sleeve (36), a pin shaft (38) is arranged at the end part of the transverse rotating rod (37), and a puncture needle clamping device (39) is arranged on the pin shaft (38),

the puncture needle clamping device (39) comprises a rotating part (391) which is rotatably arranged on the pin shaft (38), wherein the rotating part (391) is semicircular or fan-shaped, and a vertical needle holding hole (392) is arranged on the rotating part.

2. A puncture guidance system according to claim 1, wherein the rotation member (391) is provided with an angular line (393), and the lateral rotation lever (37) is provided with a pointer (394) for indicating a rotation angle of the rotation member (391).

3. A puncture navigation system according to claim 1, characterized in that the adjusting arm (32) is arranged on a treatment couch (40), a plurality of wires (41) for positioning are arranged on the treatment couch (40), the wires (41) are arranged at equal intervals and have decreasing length difference.

4. A puncture navigation system according to claim 1, characterized in that the needle holding hole (392) is surrounded by two semicircular rings (3921) hinged to each other, wherein one semicircular ring (3921) is provided on the rotation member (391), and further comprising a fastening member for fastening the two semicircular rings (3921).

5. A puncture guidance system according to claim 1, characterized in that the needle holding hole (392) is enclosed by an arc-shaped member (3922) and an arc-shaped plate (3923), an arc-shaped groove (3924) is provided on one side of the inner wall of the arc-shaped member (3922), and the arc-shaped plate (3923) is slidably arranged in the arc-shaped groove (3924).

6. A puncture guide system according to claim 1, wherein the lateral rotation rod (37) comprises a cylindrical section (371) for extending into the pin (38) and a narrowed section (372) connected to the cylindrical section (371), the narrowed section (372) is a thin plate type, the pin (38) is disposed at an end of the narrowed section (372), and the cylindrical section (371) is provided with a graduation mark one (373).

7. A puncture guiding system according to claim 3, wherein the treatment couch (40) is provided with transverse rails (42) on both sides, the adjusting arm (32) comprises a vertical rail (321) slidably disposed on the transverse rails (42), a first cross arm (322) moving in the up-and-down direction is disposed on the vertical rail (321), a sliding block (323) is disposed on the first cross arm (322), a second cross arm (324) perpendicular to the first cross arm (322) is slidably disposed on the sliding block (323), the first bushing (34) is disposed at the end of the second cross arm (324), and the first cross arm (322) and the second cross arm (324) are both provided with second scale marks (325).

8. A puncture guide system according to claim 3, characterized in that the treatment couch (40) is provided with three protrusions (43) arranged in sequence for distinguishing the head and the foot of the bed.