CN117958923A - Positioning device for puncture and auxiliary caliper - Google Patents

Abstract

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to a positioning device and an auxiliary caliper for puncture, which are used for assisting puncture of a puncture needle. The invention guides the light plane by using the plane laser technology emitted by the plane laser emitter, has non-physical mechanical contact, avoids polluting the aseptic area of the operation puncture operation, and the light plane is projected to the periphery of the puncture needle and the hand of an operator, so that the guiding light is clear and is not easy to be disturbed.

Description

Positioning device for puncture and auxiliary caliper

Technical Field

The invention relates to the technical field of medical auxiliary instruments, in particular to a positioning device for puncture and an auxiliary caliper.

Background

Puncture under CT positioning is one of the most widely used clinical technical means for disease diagnosis and treatment. The CT thin layer scanning is utilized to locate the puncture path, so that the puncture accuracy is greatly improved, and the treatment risk is reduced.

The optimal plane is firstly positioned and scanned before puncture, and the puncture path is planned, so that the damage to important organ tissues such as nerves, blood vessels and organs can be avoided, and meanwhile, key parameters such as the puncture angle, the puncture depth and the like can be accurately measured, but in the step of manually executing the puncture operation, an operator still needs subjective judgment on the important parameters, especially the puncture angle, without specific and accurate visual and quantitative guiding auxiliary equipment, the accident caused by the artificial puncture deviation or repeated CT rescanning and adjustment of the puncture direction can be caused, the pain is caused for a patient, and meanwhile, the exposure of X rays of the patient is increased, so that the technical barrier to be broken through in the automatic closed-loop operation is also realized by the current puncture technical means.

However, at present, in order to improve the accuracy of manual puncture, some researches try to use auxiliary instruments, and the auxiliary instruments cannot be widely popularized due to complicated manufacturing and use, incapability of repeated sterilization due to aseptic requirements and the like, and as robotic surgical equipment is widely applied, but the manufacturing cost and the use cost are high, and the auxiliary instruments are difficult to commonly use in common puncture operation, so that the positioning device for puncture and an auxiliary caliper are provided.

Disclosure of Invention

The invention provides a positioning device for puncture and an auxiliary caliper for solving the defects in the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides an auxiliary caliper for puncture for auxiliary puncture needle's puncture, includes supporting mechanism, supporting mechanism includes the diaphragm, the top fixed mounting of diaphragm has the semicircle strip, rotate on the diaphragm and install pushing mechanism, pushing mechanism's rotation centre of a circle coincides with the centre of a circle of semicircle strip, pushing mechanism and semicircle strip damping sliding connection, puncture needle and pushing mechanism detachable link together, pushing mechanism is used for controlling puncture angle and the puncture degree of depth of puncture needle, the bottom fixed mounting of diaphragm has prevents shaking mechanism, the quantity of preventing shaking mechanism is two at least, prevent shaking mechanism is used for adapting patient's health to fluctuate and prevents that the puncture needle from appearing the skew in the puncture process.

Preferably, the transverse plate is provided with a rotating hole, the pushing mechanism comprises a positioning plate, a rotating shaft is fixedly arranged on the positioning plate, the rotating shaft penetrates through the rotating hole and is in damping rotation connection with the rotating hole, sliding grooves are formed in two sides of the positioning plate, sliding holes are formed in the sliding grooves, a first sliding plate is slidably arranged in the two sliding grooves, a second sliding plate is slidably arranged in the sliding grooves, and two ends of the second sliding plate are fixedly connected with the corresponding first sliding plate respectively.

Preferably, a clamping block is fixedly arranged on one of the first sliding plates, a clamping groove is formed in the clamping block, a pushing block penetrates through the sliding hole and is fixedly connected with the two first sliding plates and the two second sliding plates, the puncture needle comprises a fixedly connected end head and a needle tube, and the end head is detachably clamped in the clamping groove.

Preferably, the locating plate is located one side of the clamping block and is slidably provided with a locating block, a round hole and a rectangular opening are formed in the locating block, and when the end head is installed in the clamping groove, the needle tube and the round hole are coaxially arranged.

Preferably, the locating plate is located two measuring rules of embedded fixed mounting in one side of fixture block.

Preferably, the locating plate is arranged on one side of the rotating shaft and is rotatably provided with two rolling shafts which are respectively in rolling connection with the inner side and the outer side of the semicircular strip.

Preferably, the anti-shaking mechanism comprises a strip-shaped plate, the strip-shaped plates on two adjacent anti-shaking mechanisms are fixedly connected, the bottom of the transverse plate is fixedly connected with the top of one of the strip-shaped plates, rectangular holes are formed in the strip-shaped plates, a plurality of first guide holes which are linearly distributed are formed in the tops of the rectangular holes and the inner wall of the bottom of the rectangular holes, a moving plate is slidably mounted in the rectangular holes, a plurality of second guide holes which are linearly distributed are formed in the moving plate, a guide rod is mounted in the second guide holes in a penetrating mode in a sliding mode, and the guide rod penetrates through the corresponding two first guide holes in a sliding mode.

Preferably, a bracket is fixedly arranged on one side of the rectangular hole, a threaded rod is connected to the bracket in a penetrating mode, the threaded rod is rotationally connected with the movable plate, and flexible pads are fixedly arranged at the top end and the bottom end of the guide rod.

The utility model provides a positioner is used in puncture, is applicable to foretell auxiliary caliper is used in puncture, includes electronic linear guide, fixed mounting has the frame on electronic linear guide's the slider, the top inner wall fixed mounting of frame has the dwang first, be equipped with the motor in the frame, the top fixed mounting of motor has the dwang second, dwang second and dwang one are rotated and are connected, fixed mounting has plane laser emitter on the output shaft of motor.

Compared with the prior art, the invention has the beneficial effects that:

1. The invention guides the light plane by using the plane laser technology emitted by the plane laser emitter, has non-physical mechanical contact, avoids polluting the aseptic area of the operation puncture operation, and the light plane is projected to the periphery of the puncture needle and the hand of an operator, so that the guiding light is clear and is not easy to be disturbed.

2. The puncture angle is input (or information is imported) to a controller for controlling the motor and the electric linear guide rail through keyboard data, the horizontal position and the light plane angle of plane laser emitted by the plane laser emitter are adjusted, and the puncture angle of the auxiliary puncture needle can be accurately controlled finally by integrating the technical foundation of the two aspects.

3. The body fluctuation of different patients can be adapted through the two anti-shaking mechanisms, the condition that the puncture needle cannot deviate and shake in the puncture process is ensured, and in addition, the puncture angle and the puncture depth of the puncture needle can be accurately controlled through the pushing mechanism.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an auxiliary caliper for puncture according to the present invention;

FIG. 2 is a schematic view of another azimuth structure of an auxiliary caliper for puncture according to the present invention;

FIG. 3 is an exploded view of the pushing mechanism and the puncture needle in the auxiliary caliper for puncture according to the present invention;

fig. 4 is a schematic structural view of a pushing mechanism in an auxiliary caliper for puncture according to the present invention;

Fig. 5 is a schematic structural view of a supporting mechanism in an auxiliary caliper for puncture according to the present invention;

FIG. 6 is an exploded view of an anti-sloshing mechanism in the auxiliary caliper for puncturing according to the present invention;

FIG. 7 is an enlarged schematic view of the portion A of FIG. 6;

FIG. 8 is a schematic view of the whole structure of a positioning device for puncturing according to the present invention;

fig. 9 is a schematic diagram of the overall structure of a positioning device for puncture and an auxiliary caliper according to the present invention.

In the figure: 1. a support mechanism; 11. a cross plate; 111. a rotation hole; 12. a semicircular strip; 2. a pushing mechanism; 21. a positioning plate; 22. a chute; 23. a slide hole; 24. a first sliding plate; 25. a second slide plate; 26. a pushing block; 27. a positioning block; 271. a round hole; 272. a rectangular opening; 28. a measuring ruler; 29. a clamping block; 291. a clamping groove; 210. a rotating shaft; 211. a roller; 3. a puncture needle; 31. an end head; 32. a needle tube; 4. an anti-shake mechanism; 41. a strip-shaped plate; 42. a rectangular hole; 43. the first guide hole; 44. a guide rod; 45. a flexible pad; 46. a moving plate; 47. guide holes II; 48. a bracket; 49. a screw; 5. an electric linear guide rail; 6. a frame; 61. a first rotating block; 7. a motor; 71. a second rotating block; 8. planar laser transmitter.

Detailed Description

The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 9, the present invention provides a technical solution: the utility model provides an auxiliary caliper for puncture for supplementary pjncture needle 3's puncture, including supporting mechanism 1, supporting mechanism 1 includes diaphragm 11, the top fixed mounting of diaphragm 11 has semicircle strip 12, rotationally install pushing mechanism 2 on the diaphragm 11, pushing mechanism 2's rotation centre of a circle and the coincidence of semicircle strip 12, pushing mechanism 2 and semicircle strip 12 damping sliding connection, pjncture needle 3 and pushing mechanism 2 detachable link together, pushing mechanism 2 is used for controlling pjncture needle 3's puncture angle and puncture degree of depth, the bottom fixed mounting of diaphragm 11 has prevents shaking mechanism 4, prevent shaking mechanism 4's quantity is two at least, prevent shaking mechanism 4 is used for adapting patient's health to fluctuate and prevents pjncture needle 3 to appear the skew in the puncture in-process.

The transverse plate 11 is provided with a rotating hole 111, the pushing mechanism 2 comprises a positioning plate 21, a rotating shaft 210 is fixedly arranged on the positioning plate 21, the rotating shaft 210 penetrates through the rotating hole 111 and is connected with the rotating hole 111 in a damping rotating manner, sliding grooves 22 are formed in two sides of the positioning plate 21, sliding holes 23 are formed in the sliding grooves 22, a first sliding plate 24 is slidably arranged in each of the two sliding grooves 22, a second sliding plate 25 is slidably arranged in each sliding hole 23, and two ends of the second sliding plate 25 are fixedly connected with the corresponding first sliding plate 24 respectively.

One of them slide 24 is last fixed mounting has fixture block 29, has offered draw-in groove 291 on the fixture block 29, runs through slidable mounting in the slide hole 23 and has push block 26, and push block 26 and two slide 24 and slide two 25 fixed connection, pjncture needle 3 include fixed connection's end 31 and needle tubing 32, and end 31 detachable cartridge is in draw-in groove 291.

The positioning plate 21 is provided with a positioning block 27 on one side of the clamping block 29 in a sliding manner, the positioning block 27 is provided with a round hole 271 and a rectangular opening 272, and when the end head 31 is arranged in the clamping groove 291, the needle tube 32 and the round hole 271 are coaxially arranged.

Further, a limit groove is formed in the positioning plate 21, a slide bar is mounted in the limit groove in a damping sliding manner, the slide bar is fixedly connected with the positioning block 27, the outer diameter of the needle tube 32 is not larger than the inner diameter of the round hole 271, and when the needle tube 32 slides in the round hole 271, the situation of offset and shaking does not occur.

The positioning plate 21 is provided with two measuring scales 28 which are embedded and fixedly arranged on one side of the clamping block 29.

Further, the moving distance of the clamping block 29 on the positioning plate 21 can be measured through the measuring ruler 28, so that the depth of the clamping block 29 driving the needle tube 32 to penetrate into the patient can be accurately judged.

The positioning plate 21 is rotatably mounted on one side of the rotating shaft 210, and the two rollers 211 are respectively in rolling connection with the inner side and the outer side of the semicircular strip 12.

Further, the positioning plate 21 and the semicircular strip 12 can be connected together by the two rollers 211, so that no gap is generated with the semicircular strip 12 when the whole pushing mechanism 2 rotates.

The anti-shaking mechanism 4 comprises strip-shaped plates 41, the strip-shaped plates 41 on two adjacent anti-shaking mechanisms 4 are fixedly connected, the bottom of the transverse plate 11 is fixedly connected with the top of one of the strip-shaped plates 41, rectangular holes 42 are formed in the strip-shaped plates 41, a plurality of first guide holes 43 which are linearly distributed are formed in the tops and the inner walls of the bottoms of the rectangular holes 42, a movable plate 46 is slidably mounted in the rectangular holes 42, a plurality of second guide holes 47 which are linearly distributed are formed in the movable plate 46, guide rods 44 are slidably mounted in the second guide holes 47 in a penetrating mode, and the guide rods 44 slidably penetrate through the corresponding two first guide holes 43.

A bracket 48 is fixedly arranged on one side of the rectangular hole 42, a screw 49 is connected to the bracket 48 through threads, the screw 49 is rotationally connected with the movable plate 46, and flexible pads 45 are fixedly arranged at the top end and the bottom end of the guide rod 44.

Further, when the guide hole two 47 is coaxial with the other corresponding guide holes one 43, the guide rods 44 can freely move up and down, in this case, when the plurality of guide rods 44 are placed on the patient's undulating body, the bottom ends of the plurality of guide rods 44 will fit the patient's undulating body;

when the moving plate 46 moves left and right, the inner wall of each guide hole II 47 is tightly abutted against the corresponding guide rod 44, and at this time, the fixation of each guide rod 44 is completed.

The utility model provides a positioner for puncture, is applicable to foretell auxiliary caliper for puncture, includes electronic linear guide 5, fixed mounting has frame 6 on the slider of electronic linear guide 5, and the top inner wall fixed mounting of frame 6 has rotor one 61, is equipped with motor 7 in the frame 6, and the top fixed mounting of motor 7 has rotor two 71, and rotor two 71 and rotor one 61 rotate to be connected, and fixed mounting has plane laser emitter 8 on the output shaft of motor 7.

Further, the plane laser emitter 8 can be driven to transversely move through the electric linear guide rail 5, so that plane laser emitted by the plane laser emitter 8 can act on a patient body, the plane laser emitter 8 is controlled to rotate through the motor 7, different inclination angles can be displayed according to the puncture angle of the puncture needle 3 to serve as references, and the motor 7 can always keep a vertical state due to the fact that the motor 7 and the frame 6 are rotationally linked through the rotating block two 71 and the rotating block one 61.

In this embodiment: when the puncture needle is used, plane laser is emitted by the plane laser emitter 8, and the plane laser emitter 8 is driven by the motor 7 to rotate, so that the angle of the plane laser can be adjusted, and the inclination angle of the plane laser can be used for controlling the puncture angle of the subsequent puncture needle 3 when the human body is punctured;

when in puncture, the two anti-shake mechanisms 4 are abutted against the body of a patient, the bottom ends of the guide rods 44 on the anti-shake mechanisms 4 are at different heights due to the body of the patient, then the screw rods 49 can be screwed, the moving plate 46 is driven to displace in the rectangular holes 42 by the screw rods 49, in the process, the inner walls of the guide holes II 47 on the moving plate 46 are tightly abutted against the corresponding guide rods 44, and at the moment, the positions of the guide rods 44 are not changed even if the anti-shake mechanisms 4 are lifted, so that the support mechanism 1 can be kept vertical to the body of the patient through the two anti-shake mechanisms 4;

Then, the positioning plate 21 is rotated by taking the rotating shaft 210 as the center of a circle, so that the plane laser can be overlapped with the axis of the needle tube 32 on the clamping block 29, then, the first slide plate 24 can push the needle tube 32 to penetrate into the patient through the clamping block 29 by pushing the pushing block 26, in the process, the needle tube 32 penetrates into the patient through the round hole 271, the needle tube 32 is limited through the round hole 271, the condition that the needle tube 32 is deviated in the penetrating process can be avoided, and the depth of the needle tube 32 penetrating into the patient can be accurately controlled by observing the scale on the measuring ruler 28;

then, the positioning block 27 can be pushed, so that the needle tube 32 enters the rectangular opening 272 from the circular hole 271 and is completely separated from the positioning block 27, and then the end head 31 is pulled out from the clamping groove 291, so that the separation of the puncture needle 3 and the pushing mechanism 2 can be completed.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (9)

1. An auxiliary caliper for puncture, which is used for assisting the puncture of a puncture needle (3), and comprises a supporting mechanism (1), and is characterized in that: supporting mechanism (1) is including diaphragm (11), the top fixed mounting of diaphragm (11) has semicircle strip (12), push mechanism (2) are installed in rotation on diaphragm (11), the centre of a circle of push mechanism (2) and the coincidence of the centre of a circle of semicircle strip (12), push mechanism (2) and semicircle strip (12) damping sliding connection, pjncture needle (3) and push mechanism (2) detachable link together, push mechanism (2) are used for controlling pjncture angle and the penetration depth of pjncture needle (3), the bottom fixed mounting of diaphragm (11) has and prevents shaking mechanism (4), the quantity of preventing shaking mechanism (4) is two at least, prevent shaking mechanism (4) are used for adapting patient's health to fluctuate and prevent pjncture needle (3) to appear the skew at puncture in-process.

2. The auxiliary caliper for puncture according to claim 1, wherein: offer on diaphragm (11) with rotate hole (111), push mechanism (2) including locating plate (21), fixed mounting has pivot (210) on locating plate (21), pivot (210) run through rotate hole (111) and rotate with rotation hole (111) damping and be connected, spout (22) have all been offered on the both sides of locating plate (21), slide hole (23) have been offered on spout (22), all slidable mounting has slide one (24) in two spouts (22), slidable mounting has slide two (25) in slide hole (23), the both ends of slide two (25) are respectively with corresponding slide one (24) fixed connection.

3. The auxiliary caliper for puncture according to claim 2, wherein: one of them slide one (24) is last fixed mounting has fixture block (29), set up draw-in groove (291) on fixture block (29), run through slidable mounting in slide hole (23) and have ejector pad (26), ejector pad (26) and two slide one (24) and slide two (25) fixed connection, pjncture needle (3) are including fixed connection's end (31) and needle tubing (32), end (31) detachable cartridge is in draw-in groove (291).

4. A puncture auxiliary caliper according to claim 3, characterized in that: the locating plate (21) is located one side of the clamping block (29) and is provided with a locating block (27) in a sliding mode, the locating block (27) is provided with a round hole (271) and a rectangular opening (272), and when the end head (31) is installed in the clamping groove (291), the needle tube (32) and the round hole (271) are coaxially arranged.

5. The auxiliary caliper for puncture according to claim 2, wherein: the locating plate (21) is located at one side of the clamping block (29) and is internally provided with two measuring scales (28) in an embedded mode.

6. The auxiliary caliper for puncture according to claim 2, wherein: two rollers (211) are rotatably arranged on one side of the rotating shaft (210) of the positioning plate (21), and the two rollers (211) are respectively in rolling connection with the inner side and the outer side of the semicircular strip (12).

7. The auxiliary caliper for puncture according to claim 1, wherein: the anti-shaking mechanism (4) comprises strip-shaped plates (41), the strip-shaped plates (41) on two adjacent anti-shaking mechanisms (4) are fixedly connected, the bottom of the transverse plate (11) is fixedly connected with the top of one of the strip-shaped plates (41), rectangular holes (42) are formed in the strip-shaped plates (41), a plurality of first guide holes (43) which are linearly distributed are formed in the top and bottom inner walls of the rectangular holes (42), a movable plate (46) is slidably mounted in the rectangular holes (42), a plurality of second guide holes (47) which are linearly distributed are formed in the movable plate (46), guide rods (44) are slidably mounted in the second guide holes (47), and the guide rods (44) slidably penetrate through the corresponding first two guide holes (43).

8. The auxiliary caliper for puncture according to claim 7, wherein: one side of rectangular hole (42) fixed mounting has support (48), run through threaded connection has screw rod (49) on support (48), screw rod (49) are connected with movable plate (46) rotation, flexible pad (45) are all fixed mounting in top and bottom of guide arm (44).

9. A positioning device for puncture, which is applicable to an auxiliary caliper for puncture in claim 1, characterized in that: including electronic linear guide (5), fixed mounting has frame (6) on the slider of electronic linear guide (5), the top inner wall fixed mounting of frame (6) has rotating block one (61), be equipped with motor (7) in frame (6), the top fixed mounting of motor (7) has rotating block two (71), rotating block two (71) and rotating block one (61) rotate to be connected, fixed mounting has plane laser emitter (8) on the output shaft of motor (7).