Laser positioning puncture needle handle capable of being used for plane internal and external puncture

Abstract

The invention relates to the technical field of puncture needle handles, and discloses a laser positioning puncture needle handle capable of being used for both in-plane and out-of-plane puncture, which comprises a needle body and further comprises a handle internally and vertically provided with a needle clamping groove for the needle body to pass through in a penetrating manner; the V-shaped groove is formed in the side wall of the needle clamping groove; the pressing plate is movably arranged in the needle clamping groove, two needle abutting columns are arranged on the side, facing the V-shaped groove, of the pressing plate, and the pressing plate can move in the direction of the V-shaped groove and tightly press and fix the needle body in the V-shaped groove through the two needle abutting columns; according to the laser positioning puncture needle handle capable of being used for both in-plane and out-plane puncture, the position of the needle body on an acoustic beam surface or in a vertical middle section of the needle body can be visually assisted to be determined through projection of 'L'-shaped laser on an ultrasonic probe, the puncture guiding accuracy is improved, meanwhile, the laser positioning puncture needle handle is suitable for in-plane and out-plane puncture modes, and the puncture efficiency is improved. The convenience and safety of clinical operation are improved, meanwhile, brand specificity is avoided, and the method is suitable for probes of any brand and any frequency.

Description

Technical Field

[0001] The invention relates to the technical field of puncture needle handles, and in particular to a laser positioning puncture needle handle which can be used for both inside-outside plane puncture and outside-inside plane puncture. Background Art

[0002] Ultrasound-guided puncture has the advantages of being minimally invasive, radiation-free, and low-cost. It is one of the most important supporting technologies in the field of minimally invasive surgery and is widely used in various clinical departments. Ultrasound-guided puncture is divided into in-plane and out-of-plane puncture. For in-plane puncture, the puncture needle must move within the sound beam plane (the middle section of the short axis side of the probe), and the movement trajectory of the puncture needle after entering the human body can be seen on the display, and the puncture path is long; for out-of-plane puncture, the puncture needle must move within the vertical middle section of the sound beam plane (the vertical plane at the midline of the long axis side of the probe), and the echo at the intersection of the puncture needle and the sound beam plane can be seen on the display, and the puncture path is short.

[0003] Imprecise ultrasound-guided puncture can cause damage to important structures other than the target, such as arteries, gastrointestinal tract, nerve tissue, pleura, etc., which can lead to complications such as infection, fever, and pain. Precision puncture is the core and most fundamental content of ultrasound-guided puncture. The most fundamental requirement for precision puncture of ultrasound-guided puncture is to strictly limit the puncture needle to the sound beam plane (in-plane puncture) or to move in the vertical mid-section of the sound beam plane (out-of-plane puncture).

[0004] At present, although there are puncture guide devices that greatly improve the accuracy of puncture (such as patents CN110680474A, CN110236655B, CN113712644B, etc.), there are still some problems: 1. Currently, there are few free-angle puncture guide devices: the market mainly uses fixed-angle puncture guide devices, and there are few free-angle puncture guide devices, which makes it impossible to adjust the motion trajectory of the puncture needle in real time according to the change of the target position. Multiple position adjustments and trial insertions will cause complications; 2. Probe brand restrictions: There are few varieties of puncture guide devices on the market, and probes of different brands are brand-specific. Probes of other brands cannot be used universally and are expensive, which limits the clinical use of puncture guide devices. 3. There is no puncture guide device on the market that is universally applicable to both internal and external punctures of a plane. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a laser positioning puncture needle handle that can be used for both in-plane and out-plane punctures, which has the advantages of high precision, good versatility, and can be used for both in-plane and out-plane punctures.

[0006] (II) Technical solution In order to achieve the above-mentioned purpose of high precision, good versatility, and being usable for both inside and outside plane puncture, the present invention provides the following technical solution: a laser positioning puncture needle handle that can be used for both inside and outside plane puncture, comprising a needle body, and also comprising: The handle has a needle slot vertically extending therein for the needle to pass through; A V-shaped groove is provided on the side wall of the needle slot; A pressing plate is movably arranged in the needle clamping groove and is provided with two needle-resisting posts on one side facing the V-shaped groove. The pressing plate can move toward the V-shaped groove and press the needle body tightly and fix it in the V-shaped groove through the two needle-resisting posts. The electric control box has an opening at the bottom, is installed on the side of the pressure plate facing away from the V-shaped groove, and has at least one cross laser light capable of emitting a cross laser installed inside; The symmetry axis of the V-shaped groove is located on the vertical line of the cross laser.

[0007] As a preferred technical solution of the present invention, a needle entry port connected to the needle clamping slot is provided on the outer wall of the handle.

[0008] As a preferred technical solution of the present invention, two cross laser lights are arranged in parallel in the electric control box, and the cross lasers emitted by the two cross laser lights form a "‡"-shaped laser, and the symmetry axis of the V-shaped groove is located on the vertical line of the "‡"-shaped laser.

[0009] As a preferred technical solution of the present invention, a storage groove for accommodating the electric control box is provided on the side wall of the card pin groove opposite to the V-shaped groove, and a bottom groove for projecting laser is provided at the bottom of the storage groove.

[0010] As a preferred technical solution of the present invention, it also includes a silicone sleeve, which is movable on the needle body, and a stop pad is also provided at the bottom end of the silicone sleeve.

[0011] As a preferred technical solution of the present invention, a plate cavity is formed in the pressure plate, and a threaded rod is rotatably installed in the plate cavity. Left-handed threads and right-handed threads with opposite rotation directions are respectively formed on both sides of the outer wall of the threaded rod. The outer walls of the left-handed threads and right-handed threads are threadedly connected with nuts, and the two needle columns are respectively fixedly installed on the two nuts.

[0012] As a preferred technical solution of the present invention, the electric control box is detachably mounted on the pressure plate; The side of the pressure plate facing away from the V-shaped groove is evenly provided with plug posts, and the plug posts are inserted into the column grooves opened on the outer wall of the electric control box; A moving groove is also provided in the middle of the pressing plate on the side facing away from the V-shaped groove, and two clamping blocks are slidably installed in the moving groove, and the two clamping blocks are opened by an opening spring; The outer wall of the electric control box is provided with a back groove for two card blocks to be clamped in, the end of the card block is provided with a clamp head, and the inner wall of the back groove is provided with a clamp groove for the clamp head to be clamped in.

[0013] As a preferred technical solution of the present invention, an inner cavity is formed inside the handle, a screw is rotatably installed in the inner cavity, a nut is threadedly connected to the outer wall of the screw, and the pressure plate is fixedly mounted on the nut through a connecting piece.

[0014] (III) Beneficial effects Compared with the prior art, the present invention provides a laser positioning puncture needle handle that can be used for both in-plane and out-plane puncture, and has the following beneficial effects: 1. The laser positioning puncture needle handle, which can be used for puncture inside and outside the plane, can stably fix the handle to the needle body through the structural design of the V-groove and the pressure plate, and ensure that the puncture point of the needle body is located on the vertical line of the "‡"-shaped laser, thereby ensuring the puncture accuracy.

[0015] 2. The laser positioning puncture needle handle, which can be used for both in-plane and out-of-plane puncture, can intuitively assist in determining the position of the needle body in the sound beam plane or its vertical mid-section through the projection of the "‡"-shaped laser on the ultrasound probe, thereby improving the accuracy of puncture guidance. It is suitable for both in-plane and out-of-plane puncture methods, improving the convenience and safety of clinical operations. It is also brand-free and can be used with probes of any brand and frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the out-of-plane puncture method of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 A bottom view of the handle portion of the present invention; Figure 4 is a top cross-sectional view of the handle portion of the present invention; Figure 5 is a cross-sectional view of the pressing plate portion of the present invention; Figure 6 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle; Figure 7 It is a cross-sectional view of the side groove part of the present invention; Figure 8 It is a schematic diagram of the in-plane puncture method of the present invention.

[0017] In the figure: 1. needle body; 2. handle; 3. needle slot; 4. V-shaped slot; 5. needle entrance; 6. pressure plate; 7. needle post; 8. nut; 9. screw rod; 10. knob; 11. electric control box; 12. cross laser light; 13. storage slot; 14. bottom slot; 15. silicone sleeve; 16. stopper; 17. threaded rod; 18. nut; 19. plug-in column; 20. clamping block; 21. opening spring; 22. back slot; 23. clamping slot; 24. side slot; 25. shield; 26. moving block; 27. hinged rod; 28. push rod; 29. ​​inner plate; 30. support spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: See also Figure 1-Figure 8 A laser positioning puncture needle handle that can be used for both in-plane and out-plane punctures comprises a needle body 1 and a handle 2. Figure 2 As shown, a needle-clamping groove 3 for the needle body 1 to pass through is vertically penetrated on the handle 2, and a V-shaped groove 4 is provided on the side wall of the needle-clamping groove 3. In addition, a pressing plate 6 is also provided in the needle-clamping groove 3, and two needle-receiving columns 7 are provided on the side of the pressing plate 6 facing the V-shaped groove 4. The pressing plate 6 can move toward the V-shaped groove 4 and press the needle body 1 tightly and fix it in the V-shaped groove 4 through the two needle-receiving columns 7, thereby fixing the entire handle 2 on the needle body 1 to complete the connection between the two.

[0020] like Figure 3 and Figure 4 As shown, an electric control box 11 is installed on the side of the pressing plate 6 facing away from the V-shaped groove 4. The bottom of the electric control box 11 has an opening, and at least one cross laser lamp 12 capable of emitting a cross laser is installed inside. In this embodiment, two cross laser lamps 12 are arranged in parallel in the electric control box 11. The cross lasers emitted by the two cross laser lamps 12 form a "‡"-shaped laser. At the same time, the symmetry axis of the V-shaped groove 4 is located on the vertical line of the "‡"-shaped laser. Since the needle body 1 is pressed tightly in the V-shaped groove 4, the needle body 1 is also located on the vertical line of the "‡"-shaped laser, thereby ensuring the puncture accuracy. The handle 2 is fixed to the needle body 1. During puncture, the position of the needle body 1 in the sound beam plane or its vertical mid-section can be intuitively assisted in determining by observing the projection of the “‡”-shaped laser on the ultrasonic probe, thereby improving the accuracy of puncture guidance. The handle 2 is applicable to both in-plane and out-of-plane puncture methods, thereby improving the convenience and safety of clinical operation. The handle 2 has no brand specificity and can be applied to probes of any brand and frequency. The handle 2 only needs to be fixed to the needle body 1.

[0021] like Figure 1 The diagram shown is a schematic diagram of out-of-plane puncture. Figure 8 The figure shows a schematic diagram of in-plane puncture. Reflective stickers can be attached to the ultrasound probe in advance, and then the alignment can be determined by observing the projection position of the laser on the reflective stickers. Specifically, the vertical reflective stickers are attached to the bisectors of the major and minor axes of the ultrasound probe, and the transverse reflective stickers are perpendicular to the vertical reflective stickers and surround the probe. The number of transverse reflective stickers can be set to multiple. In this embodiment, only two are exemplarily illustrated, corresponding to the two transverse laser beams respectively. In actual applications, about eight can be arranged up and down.

[0022] If a single cross laser light 12 is used, the transverse laser beam may not be projected onto the ultrasound probe (when the angle between the puncture needle and the probe is small), and the alignment and positioning function cannot be achieved. However, setting two cross laser lights 12 can avoid the above problem, which will generate two transverse laser beams. The reflective sticker on the ultrasound probe can be aligned with the two transverse laser lines, so that the alignment and positioning is more accurate. In addition, by stacking two cross laser lights 12 one above the other, the laser itself can be self-checked. If the two longitudinal laser beams are not in a straight line, it means that the laser is misaligned and needs to be repaired.

[0023] like Figure 4 As shown, a needle entry port 5 connected to the needle slot 3 is provided on the outer wall of the handle 2. The needle entry port 5 facilitates the needle body 1 to enter the handle 2 sideways, or to detach from the handle 2 sideways. This is because during the treatment process, after the puncture needle enters the target site, it often needs to stay in the human body for a period of time, such as for cyst aspiration and alcohol injection treatment, radiofrequency ablation or microwave ablation, puncture and catheterization, etc. In this case, the design of the needle entry port 5 facilitates the removal of the handle 2, which is flexible and convenient.

[0024] In this embodiment, Figure 2As shown, a silicone sleeve 15 is movably provided on the needle body 1, and a baffle 16 is provided at the bottom end of the silicone sleeve 15. The silicone sleeve 15 can not only "increase" the diameter of the needle body 1, facilitate the fixation of the needle body 1, and be suitable for needle bodies 1 of different diameters, but also play a protective role; in addition, the silicone sleeve 15 also plays an "isolation" role to prevent the needle body 1 from contaminating the handle 2 after puncture. In actual use, the silicone sleeve 15 is replaced once for clean and hygienic use.

[0025] In the present invention, Figure 4 As shown, a storage groove 13 for accommodating the electric control box 11 is provided on the side wall of the card pin groove 3 opposite to the V-shaped groove 4, and a bottom groove 14 for projecting laser is provided at the bottom of the storage groove 13. The electric control box 11 moves together with the pressure plate 6. The arrangement of the storage groove 13 facilitates the storage of the electric control box 11, and the arrangement of the bottom groove 14 facilitates the downward projection of the laser.

[0026] In this embodiment, the position of the pressing plate 6 is manually adjusted, specifically, as follows: Figure 4 As shown, an inner cavity is formed inside the handle 2, a screw rod 9 is rotatably installed in the inner cavity, one end of the screw rod 9 extends to the outside of the handle 2 and is fixedly connected to a knob 10, a nut 8 is threadedly connected to the outer wall of the screw rod 9, and a pressure plate 6 is fixedly installed on the nut 8 through a connecting piece and can move with the nut 8; When adjusting the position of the pressure plate 6, just turn the knob 10, the knob 10 drives the screw rod 9 to rotate, the rotation of the screw rod 9 drives the nut 8 to move left and right, the left and right movement of the nut 8 can drive the pressure plate 6 to move left and right, adjust its position, to press the needle body 1, or release the pressure on the needle body 1.

[0027] The specific shape of the handle 2 can be set by those skilled in the art to a shape that is easier to hold and more ergonomic as needed, and the figure shown in the present invention is only for illustration.

[0028] Embodiment 2: See also Figure 4-Figure 6 , based on the first embodiment, in this embodiment, as Figure 5 As shown, a plate cavity is formed inside the pressing plate 6, and a threaded rod 17 is rotatably installed in the plate cavity. One end of the threaded rod 17 extends to the outside of the pressing plate 6 and is fixedly connected to a control button. Left-handed threads and right-handed threads with opposite rotation directions are formed on both sides of the outer wall of the threaded rod 17, and nuts 18 are threadedly connected to the outer walls of the left-handed threads and the right-handed threads. The two needle posts 7 are fixedly installed on the two nuts 18, respectively, so that the distance between the two needle posts 7 can be adjusted by turning the control button. By adjusting the distance between the two needle-receiving posts 7, not only can it be adapted to needle bodies 1 of different diameters, but also the distance between the needle body 1 and the electric control box 11 can be adjusted, because the electric control box 11 is directly mounted on the pressing plate 6. The shorter the distance between the two needle-receiving posts 7, the farther the electric control box 11 is from the needle body 1 after the needle body 1 is pressed. On the contrary, the longer the distance between the two needle-receiving posts 7, the closer the electric control box 11 is to the needle body 1 after the needle body 1 is pressed. By adjusting the distance between the needle body 1 and the electric control box 11, the position of the needle body 1 on the vertical line of the “‡”-shaped laser is controlled, thereby achieving the purpose of relatively controllable projection position.

[0029] In the present invention, the electric control box 11 can be detachably mounted on the pressure plate 6, so that it is convenient to remove and replace. Figure 5 and Figure 6 As shown, a plug post 19 is evenly arranged on the side of the pressure plate 6 facing away from the V-shaped groove 4, and the plug post 19 is inserted into the column groove opened on the outer wall of the electric control box 11. In addition, a moving groove is also opened in the middle of the side of the pressure plate 6 facing away from the V-shaped groove 4, and two clamping blocks 20 are slidably installed in the moving groove. The two clamping blocks 20 are opened by the opening spring 21 and can be squeezed by the two nuts 18 to approach each other, as shown in FIG. Figure 6 As shown, a back groove 22 for two clamping blocks 20 to be clamped into is provided on the outer wall of the electric control box 11, and a clamping head is provided at the end of the clamping block 20, and a clamping groove 23 for the clamping head to be clamped into is provided on the inner wall of the back groove 22; The two nuts 18 are controlled to approach each other and squeeze the two clamping blocks 20, so that the electric control box 11 can be installed on the pressing plate 6 (the plug column 19 is inserted into the column groove, and the clamping block 20 is inserted into the back groove 22). Then, the two nuts 18 are controlled to move away from each other. Under the action of the opening spring 21, the two clamping blocks 20 will separate, and the two clamping heads will be respectively inserted into the two clamping grooves 23, thereby completing the assembly, and the electric control box 11 cannot fall off; When disassembly is required, the two nuts 18 are controlled to move closer to each other.

[0030] In this embodiment, the positions of the two nuts 18 can be adjusted by turning the control knob. The rotation of the control knob drives the threaded rod 17 to rotate. The threaded rod 17 rotates through left-handed threads and right-handed threads with opposite rotation directions, so that the two nuts 18 can be moved closer to or farther away from each other and the spacing can be adjusted.

[0031] Embodiment three: See also Figure 7 On the basis of the first or second embodiment, in this embodiment, two side grooves 24 are provided on the inner wall of the bottom groove 14, and shields 25 are movably and telescopically provided in the two side grooves 24. The shields 25 can be extended to shield the emitting head of the cross laser lamp 12, so that the emitting head of the cross laser lamp 12 can be protected from external damage when not in use; The setting position of the shield 25 is the position of the electric control box 11 and the cross laser light 12 when the nut 8 moves to the leftmost end, which can also be called the "original position". When the cross laser light 12 is in the original position, the shield 25 can protect the emission head of the cross laser light 12.

[0032] In this embodiment, the shield 25 is retractable. Specifically, Figure 7 As shown, the shield 25 is mounted on the moving block 26, and the moving block 26 is movably arranged in the moving groove, and the moving groove is opened in the handle 2; The bottom of the moving block 26 (with Figure 7 An articulated rod 27 is hingedly connected to the hinge seat, and the other end of the articulated rod 27 is hingedly connected to a push rod 28. The end of the push rod 28 extends into the inner cavity and can be pushed by the nut 8 moving to the left. In addition, an inner plate 29 is fixedly mounted on the push rod 28. The inner plate 29 is movably arranged in the transverse groove and supported by a support spring 30 in the transverse groove. The push rod 28 and the shield 25 are initially as Figure 7 As shown, the shield 25 is retracted; when the nut 8 moves to the leftmost end to move the cross laser light 12 to the original position, it also pushes the push rod 28. The push rod 28 is pushed and while the support spring 30 is compressed by the inner plate 29, the moving block 26 is also pushed by the hinge rod 27 to move, thereby extending the shield 25 to play a shielding role; Conversely, when the cross laser light 12 leaves the original position, the shielding plate 25 will also retract to prevent the previous shielding plate 25 from blocking the next cross laser light 12 .

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser positioning puncture needle handle that can be used for both in-plane and out-plane puncture, comprising a needle body, characterized in that: Also includes: The handle has a needle slot vertically extending therein for the needle to pass through; A V-shaped groove is provided on the side wall of the needle slot; A pressing plate is movably arranged in the needle clamping groove and is provided with two needle-resisting posts on one side facing the V-shaped groove. The pressing plate can move toward the V-shaped groove and press the needle body tightly and fix it in the V-shaped groove through the two needle-resisting posts. The electric control box has an opening at the bottom, is installed on the side of the pressure plate facing away from the V-shaped groove, and has at least one cross laser light capable of emitting a cross laser installed inside; The symmetry axis of the V-shaped groove is located on the vertical line of the cross laser.

2. A laser positioning puncture needle handle that can be used for both in-plane and out-of-plane puncture according to claim 1, characterized in that: The outer wall of the handle is provided with a needle entry port which is connected with the needle clamping groove.

3. The laser positioning puncture needle handle that can be used for both in-plane and out-of-plane puncture according to claim 1, characterized in that: Two cross laser lamps are arranged in parallel in the electric control box. The cross lasers emitted by the two cross laser lamps form a "‡"-shaped laser. The symmetry axis of the V-shaped groove is located on the vertical line of the "‡"-shaped laser.

4. A laser positioning puncture needle handle that can be used for both in-plane and out-of-plane puncture according to claim 1 or 3, characterized in that: A storage groove for accommodating the electric control box is provided on a side of the side wall of the card pin groove opposite to the V-shaped groove, and a bottom groove for projecting laser is provided at the bottom of the storage groove.

5. The laser positioning puncture needle handle that can be used for both in-plane and out-of-plane puncture according to claim 1, characterized in that: It also includes a silicone sleeve, which is movable on the needle body, and a stop pad is provided at the bottom end of the silicone sleeve.

6. The laser positioning puncture needle handle that can be used for both in-plane and out-of-plane puncture according to claim 1, characterized in that: A plate cavity is formed in the pressure plate, and a threaded rod is rotatably installed in the plate cavity. Left-handed threads and right-handed threads with opposite rotation directions are formed on both sides of the outer wall of the threaded rod respectively. The outer walls of the left-handed threads and right-handed threads are threadedly connected with nuts, and the two needle columns are fixedly installed on the two nuts respectively.

7. A laser positioning puncture needle handle that can be used for both in-plane and out-of-plane puncture according to claim 6, characterized in that: The electric control box can be detachably mounted on the pressure plate; The side of the pressure plate facing away from the V-shaped groove is evenly provided with plug posts, and the plug posts are inserted into the column grooves opened on the outer wall of the electric control box; A moving groove is also provided in the middle of the pressing plate on the side facing away from the V-shaped groove, and two clamping blocks are slidably installed in the moving groove, and the two clamping blocks are opened by an opening spring; The outer wall of the electric control box is provided with a back groove for two card blocks to be clamped in, the end of the card block is provided with a clamp head, and the inner wall of the back groove is provided with a clamp groove for the clamp head to be clamped in.

8. The laser positioning puncture needle handle that can be used for both in-plane and out-of-plane puncture according to claim 4, characterized in that: An inner cavity is formed inside the handle, a screw rod is rotatably installed in the inner cavity, a nut is threadedly connected to the outer wall of the screw rod, and the pressure plate is fixedly installed on the nut through a connecting piece.

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