Needle puncture guide device and puncture system

Abstract

The utility model relates to a needle puncture guiding device and a puncture system, and relates to the technical field of surgical instruments. The needle puncture guide device comprises an adjusting clamping mechanism and / or an auxiliary clamping mechanism used for clamping a needle, the adjusting clamping mechanism comprises a first angle adjuster and a second angle adjuster used for clamping the needle, the first angle adjuster is rotated to change a first puncture angle beta of the needle, and the second angle adjuster is rotated to change a second puncture angle beta of the needle. The second puncture angle theta of the needling instrument is changed by rotating the second angle adjuster, so that the needling instrument can be quickly adjusted to the required puncture angle, the puncture angle does not need to be determined through repeated CT scanning, the operation efficiency can be improved, and the operation duration can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to a needle puncture guide device and a puncture system. Background Art

[0002] With the continuous improvement of medical technology, minimally invasive interventional surgery for tumor diseases is increasingly accepted by doctors and patients for its characteristics of precision, minimal invasion, safety and high efficiency. Usually, it is necessary to use CT to scan and determine the location of the lesion before surgery to determine the puncture point, puncture path, puncture angle and puncture distance (distance from the edge of the lesion to the puncture point) and other parameters of the puncture needle. In the prior art, although the center position of the lesion and the best puncture position can be accurately determined with the help of CT scanning, when the patient leaves the CT scanning device, the doctor can only judge the puncture direction and puncture angle based on clinical experience. When the judgment is not accurate enough, it is inevitable to use CT to scan repeatedly to adjust the puncture angle, which leads to low surgical efficiency, long operation time, and poor patient experience during the operation. Utility Model Content

[0003] The utility model provides a needle puncture guide device and a puncture system, which are used to solve at least one of the above-mentioned technical problems.

[0004] According to the first aspect of the utility model, the utility model further provides a needle puncture guide device, comprising an adjusting clamping mechanism and / or an auxiliary clamping mechanism for clamping a needle, wherein the adjusting clamping mechanism comprises a first angle adjuster and a second angle adjuster for clamping the needle, wherein the first angle adjuster and the second angle adjuster are rotatably connected;

[0005] Wherein, when the first angle adjuster is rotated, the first puncture angle β of the needle can be changed, and when the second angle adjuster is rotated, the second puncture angle θ of the needle can be changed, and the first puncture angle β and the second puncture angle θ are puncture angles in different planes.

[0006] In one embodiment, the first puncture angle β is between -180° and +180°, and the second puncture angle θ is between -90° and +90°.

[0007] In one embodiment, the adjusting and clamping mechanism further comprises a connecting sleeve,

[0008] The first angle adjuster is rotationally connected to the connecting sleeve via one or more of a first elastic pin mechanism, a first self-locking mechanism, a first interlocking mechanism, a first chuck mechanism or a first gear mechanism, so that the first angle adjuster can rotate relative to the connecting sleeve around its axial direction; and / or

[0009] The second angle adjuster is rotationally connected to the first angle adjuster through one or more of a second elastic pin mechanism, a second self-locking mechanism, a second interlocking mechanism, a second chuck mechanism and a second gear mechanism, so that the second angle adjuster can rotate radially relative to the first angle adjuster.

[0010] In one embodiment, the first elastic pin mechanism comprises:

[0011] a first elastic pin;

[0012] A first mounting hole is provided on an end surface of one of the first angle adjuster and the connecting sleeve, and the first elastic pin is provided in the first mounting hole; and

[0013] A first positioning groove is arranged on the end surface of the other of the first angle adjuster and the connecting sleeve, and the first elastic pin can be retracted into the first mounting hole or extended from the first mounting hole to the first positioning groove.

[0014] In one embodiment, a first rotating shaft is further connected between the first angle adjuster and the connecting sleeve, and the first rotating shaft is coaxial with the first angle adjuster and the connecting sleeve;

[0015] The first mounting holes and the first positioning grooves are respectively arranged at equal intervals along the circumference of the first rotating shaft, and the number of the first positioning grooves is an even multiple of the number of the first mounting holes.

[0016] In one embodiment, a support plate is provided on the first angle adjuster, a rotation groove is provided on the first side of the second angle adjuster, and the support plate is provided in the rotation groove;

[0017] The second elastic pin mechanism comprises:

[0018] a second elastic pin;

[0019] A second mounting hole is provided on a side wall of one of the support plate and the rotation groove, and the second elastic pin is provided in the second mounting hole; and

[0020] A second positioning groove is arranged on the side wall of the other of the support plate and the rotating groove, and the second elastic pin can be retracted into the second mounting hole or extended from the second mounting hole to the second positioning groove.

[0021] In one embodiment, the support plate is rotatably connected to the rotation groove via a second rotation shaft, and the axial direction of the second rotation shaft is perpendicular to the axial direction of the second angle adjuster;

[0022] The second mounting holes and the second positioning grooves are respectively arranged at equal intervals along the circumference of the second rotating shaft, and the number of the second positioning grooves is an even multiple of the number of the second mounting holes.

[0023] In one embodiment, an angle indicator mark is further provided on the connecting sleeve, and a scale layer is provided on the outer wall of the first angle adjuster along its axial direction. When the angle indicator mark points to the scale on the scale layer, it can indicate the angle rotated by the first angle adjuster.

[0024] In one embodiment, a level is further provided on the connecting sleeve, and / or an inclinometer is further provided on two opposite side walls of the second angle adjuster.

[0025] In one embodiment, a connector is provided on the second side of the second angle adjuster, and the connector is used to connect to the needle locking member;

[0026] The connector is provided with a first through slot extending along the axial direction of the second angle adjuster and a through hole extending along an extending direction perpendicular to the first through slot, and the needle can be accommodated in the first through slot or the through hole.

[0027] In one embodiment, the width of the first through groove is 2 mm-4 mm, and the inner diameter of the through hole is 1 mm-3 mm.

[0028] In one embodiment, it further comprises a base plate and a universal shaping tube disposed on the base plate, wherein the universal shaping tube is respectively connected to the adjusting clamping mechanism and the auxiliary clamping mechanism.

[0029] In one embodiment, the auxiliary clamping mechanism comprises a clamping head, and the clamping head is used to be connected to the needle locking member; the clamping head is provided with a second through groove extending along its axial direction, and the needle can be accommodated in the second through groove.

[0030] In one embodiment, the number of the adjusting clamping mechanism and the number of the auxiliary clamping mechanism are both one or more.

[0031] According to the second aspect of the utility model, the utility model also provides a puncture system, including the above-mentioned needle puncture guide device, and also including a needle, wherein the needle is connected to the adjustment clamping mechanism and / or auxiliary clamping mechanism in the needle puncture guide device.

[0032] Compared with the prior art, the advantage of the present invention is that by rotating the first angle adjuster to change the first puncture angle β of the needle, and by rotating the second angle adjuster to change the second puncture angle θ of the needle, the needle can be quickly adjusted to the desired puncture angle without the need to use repeated CT scans to determine the puncture angle, thereby improving surgical efficiency and shortening surgical time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0034] Figure 1a It is a schematic diagram of the three-dimensional structure of the needle puncture guide device in Example 1 of the utility model when clamping the needle;

[0035] Figure 1b It is a three-dimensional structural schematic diagram of the needle puncture guide device clamping the needle with an extension tube in Example 1 of the utility model;

[0036] Figure 2 yes Figure 1a An exploded view of the adjustment clamping mechanism shown;

[0037] Figure 3 yes Figure 2 The view of the needle locking member is hidden in the figure;

[0038] Figure 4 yes Figure 3 A front view of the first angle adjuster;

[0039] Figure 5 yes Figure 3 a rear view of the first angle adjuster;

[0040] Figure 6 yes Figure 4 A view of the first angle adjuster;

[0041] Figure 7 yes Figure 4 A magnified view at position I;

[0042] Figure 8 yes Figure 1a A three-dimensional diagram of the auxiliary clamping mechanism;

[0043] Fig. 9 yes Figure 3 A front view of the second angle adjuster;

[0044] Fig.10 yes Fig. 9 Cross-sectional view at BB;

[0045] Fig.11 yes Figure 3A cross-sectional view of the first elastic pin or the second elastic pin shown;

[0046] Fig.12 and Fig.13 yes Figure 1a The schematic diagram of the needle puncture guide device changing the first puncture angle β of the needle is shown;

[0047] Fig.14 and Fig.15 yes Figure 1a The schematic diagram of the needle puncture guide device changing the second puncture angle θ of the needle is shown;

[0048] Fig.16 yes Figure 1a A schematic structural diagram of the needle puncture guide device shown, in which the needle is in a sideways puncture state;

[0049] Fig.17 It is a schematic diagram of the three-dimensional structure of the needle puncture guide device in Example 2 of the utility model;

[0050] Fig.18 It is a schematic diagram of the three-dimensional structure of the needle puncture guide device in Example 3 of the present utility model.

[0051] Reference numerals:

[0052] 1. Base plate; 2. Connecting tube; 3. Plastic knurled screw; 4. Universal shaping tube; 5. Adjusting clamping mechanism; 6. Auxiliary clamping mechanism; 7. Needle;

[0053] 51. Connecting sleeve; 52. Level; 53. First elastic pin mechanism; 54. First angle adjuster; 55. Second angle adjuster; 56. Angle meter; 57. Needle locking member; 58. Second elastic pin mechanism;

[0054] 511. Angle indication mark;

[0055] 531, first elastic pin; 532, first mounting hole; 533, first positioning groove; 534, first rotating shaft;

[0056] 5311, spherical part; 5312, elastic part; 5313, outer cover;

[0057] 541, support plate; 542, scale layer; 543, sleeve;

[0058] 551, rotating groove; 552, connecting head; 553, first through groove; 554, through hole; 555, groove;

[0059] 581, second elastic pin; 582, second mounting hole; 583, second positioning groove; 584, second rotating shaft;

[0060] 61. Clamping head; 611. Second through slot;

[0061] 71. Needle body; 72. Handle; 73. Extension tube. DETAILED DESCRIPTION

[0062] The utility model will be further described below in conjunction with the accompanying drawings.

[0063] The utility model provides a needle puncture guide device, comprising one or both of an adjusting clamping mechanism 5 and an auxiliary clamping mechanism 6 for clamping a needle 7. Figure 1a and Figure 1b In the embodiment 1 shown, the needle puncture guide device includes an adjustment clamping mechanism 5 and an auxiliary clamping mechanism 6. Fig.17 In the embodiment 2 shown, the needle puncture guide device includes two auxiliary clamping mechanisms 6. Fig.18 In the illustrated embodiment 2, the needle puncture guide device includes two adjustment clamping mechanisms 5 .

[0064] Therefore, it can be understood that the number of the adjusting clamping mechanism 5 and the auxiliary clamping mechanism 6 can be one or more, and can be set according to actual needs.

[0065] Example 1

[0066] like Figure 1a , Figure 1b-Figure 16 As shown, the needle puncture guide device of the present invention includes an adjustment clamping mechanism 5 and an auxiliary clamping mechanism 6 for clamping a needle 7. In addition, the needle puncture guide device may also include a base plate 1 for supporting the adjustment clamping mechanism 5 and the auxiliary clamping mechanism 6. Figure 1a As shown, a universal shaping tube 4 is provided on the substrate 1, which corresponds to and is connected to the adjusting clamping mechanism 5 and the auxiliary clamping mechanism 6. Therefore, the universal shaping tube 4 can form a flexible connection between the adjusting clamping mechanism 5 and the substrate 1, and between the auxiliary clamping mechanism 6 and the substrate 1, so that the positions of the adjusting clamping mechanism 5 and the auxiliary clamping mechanism 6 can be arbitrarily changed to facilitate puncture.

[0067] Adjusting the clamping mechanism 5 can change the first puncture angle β of the needle 7 in space (such as Fig.12 and Fig.13 as shown) and a second puncture angle θ (as shown Fig.14 and Fig.15As shown in the figure, the needle 7 can be quickly adjusted to the desired puncture angle without the need to use CT to scan repeatedly to determine the puncture angle, thereby improving the efficiency of the operation and shortening the operation time. In addition, since the first puncture angle β and the second puncture angle θ are puncture angles in different planes, the puncture direction can be adjusted in three-dimensional space by adjusting the puncture angles in two different planes, so the positioning accuracy is higher, which can be applied to multi-angle precision puncture schemes that are not vertical to the needle surface.

[0068] like Figure 1a and Figure 1b As shown, the clamping mechanism 5 can be adjusted to clamp the needle body 71 of the needle 7, so that the needle 7 is in the normal puncture state.

[0069] Specifically, if Figure 1a , Figure 1b , Figure 2 and Figure 3 As shown, the adjusting and clamping mechanism 5 includes a first angle adjuster 54 and a second angle adjuster 55 for clamping the needle 7, and the first angle adjuster 54 and the second angle adjuster 55 are rotatably connected.

[0070] The first angle adjuster 54 can change the first puncture angle β of the needle 7 when it rotates, and the second angle adjuster 55 can change the second puncture angle θ of the needle 7 when it rotates. Figure 1a The angle between the needle 7 and the vertical direction in the XZ plane (i.e., the plane defined by the axial and vertical directions of the adjusting clamping mechanism 5 when it is in the zero position) is shown. The second puncture angle θ refers to the angle between the needle 7 and the vertical direction. Figure 1a The angle between the needle 7 and the vertical direction in the YZ plane (i.e., the plane defined by the radial and vertical directions of the adjustment clamping mechanism 5 when it is in the zero position) is shown.

[0071] The first angle adjuster 54 can rotate around its axial direction (i.e. Figure 1a The second angle adjuster 55 can rotate about its radial direction (i.e., the first puncture angle β) so that the first puncture angle β is -180° to +180°. Figure 1a The piercing member is rotated in the Y direction (as shown), and since it is connected to the first angle adjuster 54, the second puncture angle θ is between -90° and +90°.

[0072] like Figure 2 and Figure 3As shown, the adjusting clamping mechanism 5 further includes a connecting sleeve 51, and the first angle adjuster 54 can be rotatably connected to the connecting sleeve 51 through one or more of the first elastic pin mechanism 53, the first self-locking mechanism, the first interlocking mechanism, the first chuck mechanism or the first gear mechanism, so that the first angle adjuster 54 can rotate around the axial direction relative to the connecting sleeve 51. Similar to the first angle adjuster 54, the second angle adjuster 55 can be rotatably connected to the first angle adjuster 54 through one or more of the second elastic pin mechanism 58, the second self-locking mechanism, the second interlocking mechanism, the second chuck mechanism and the second gear mechanism, so that the second angle adjuster 55 can rotate around the radial direction relative to the first angle adjuster 54.

[0073] The rotation process of the first angle adjuster 54 and the second angle adjuster 55 will be described in detail below by taking the first elastic pin mechanism 53 and the second elastic pin mechanism 58 as an example.

[0074] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the first elastic pin mechanism 53 includes a first elastic pin 531, a first mounting hole 532 and a first positioning groove 533. The first mounting hole 532 is arranged on the end surface of one of the first angle adjuster 54 and the connecting sleeve 51, and the first elastic pin 531 is arranged in the first mounting hole 532. The first positioning groove 533 is arranged on the end surface of the other of the first angle adjuster 54 and the connecting sleeve 51, and the first elastic pin 531 can be retracted into the first mounting hole 532 or extended from the first mounting hole 532 to the first positioning groove 533.

[0075] like Figure 3 In the example shown, the first mounting hole 532 is provided on the connecting sleeve 51 and is located on the end surface that matches the first angle adjuster 54. Figure 4 and Figure 6 As shown, the first positioning groove 533 is arranged on the first angle adjuster 54 and is located on the end surface that matches with the connecting sleeve 51 .

[0076] like Fig.11 As shown, the first elastic pin 531 may be an elastic ball pin, which includes a jacket 5313, an elastic member 5312 disposed in the jacket 5313, and a spherical member 5311 disposed at the end of the elastic member 5312. The jacket 5313 may be fixed in the first mounting hole 532 in various known ways, and its end face is aligned with the end face of the first mounting hole 532. A portion of the spherical member 5311 is located outside the end face of the jacket 5313, so when the elastic member 5312 is compressed by force, the spherical member 5311 is driven to move toward the inside of the jacket 5313; when the elastic member 5312 is restored, the spherical member 5311 is driven to move toward the outside of the jacket 5313.

[0077] The first mounting hole 532 (such as Figure 3 as shown) and the first positioning groove 533 (as shown Figure 6 The number of the first mounting holes 532 as shown in the figure can be multiple, the first mounting holes 532 are arranged on the end surface of the connecting sleeve 51 at equal intervals along its circumference, and the first positioning grooves 533 are arranged on the end surface of the first angle adjuster 54 at equal intervals along its circumference.

[0078] Therefore, it can be understood that when the first angle adjuster 54 is rotated, the first mounting hole 532 is staggered with the corresponding first positioning groove 533, and the end surface of the first angle adjuster 54 that cooperates with the connecting sleeve 51 will apply force to the elastic part 5312, so that the elastic part 5312 is compressed, and the spherical part 5311 moves toward the inside of the outer sleeve 5313, so that the first angle adjuster 54 can rotate smoothly. When it is rotated to the point where the spherical part 5311 is opposite to the other first positioning groove 533, the pressure on the elastic part 5312 is eliminated, so that the spherical part 5311 moves toward the outside of the outer sleeve 5313 and enters the first positioning groove 533, thereby completing an angle adjustment of the first angle adjuster 54.

[0079] In order to ensure that the first angle adjuster 54 rotates to the same angle each time, it is necessary to make the number of the first positioning slots 533 an even multiple of the number of the first mounting holes 532. That is, after the first angle adjuster 54 rotates to the same angle each time, the first elastic pins 531 in each first mounting hole 532 can enter the corresponding first positioning slots 533. Figure 6 As shown, the number of the first positioning grooves 533 is 24, that is, the angle α between two adjacent first positioning grooves 533 is 15°. Figure 3 As shown, the number of the first mounting holes 532 and the number of the first elastic pins 531 are both 6. Therefore, each time the first angle adjuster 54 is rotated once, it rotates 15°, that is, the first puncture angle β of the needle 7 is increased or decreased by 15°.

[0080] like Fig.12 As shown, in the YZ plane, when the axial direction of the needle 7 coincides with the vertical direction, the first puncture angle β of the needle 7 is 0. When the first angle adjuster 54 rotates clockwise, the first puncture angle β of the needle 7 is positive; when the first angle adjuster 54 rotates counterclockwise, the first puncture angle β of the needle 7 is negative. Fig.13 As shown, the point where the lesion is located is point O, and the vertical direction above point O is shown by a dotted line. By rotating the first angle adjuster 54 counterclockwise, the angle between the needle 7 and the vertical direction is -β.

[0081] like Figure 3As shown, a first rotating shaft 534 is connected between the first angle adjuster 54 and the connecting sleeve 51. The first rotating shaft 534 is coaxial with the first angle adjuster 54 and the connecting sleeve 51, that is, the first angle adjuster 54 can rotate around the axial direction of the first rotating shaft 534. Figure 3 and Figure 4 As shown, a sleeve 543 is provided at the middle position of the end of the first angle adjuster 54 , and the first rotating shaft 534 is inserted into the sleeve 543 and is rotatably connected to the first angle adjuster 54 .

[0082] like Figure 3 As shown, an angle indicator mark 511 is also provided on the outer wall of the connecting sleeve 51, which may be a structure such as a raised boss. A scale layer 542 is provided on the outer wall of the first angle adjuster 54 along its axial direction. The scale on the scale layer 542 is related to the number of the first positioning grooves 533. When the angle indicator mark 511 points to a certain scale on the scale layer 542, it can indicate the angle that the first angle adjuster 54 has rotated. The scale on the scale layer 542 may be a silk-screen scale line, for example, every 15° is a small unit and every 30° is a large unit.

[0083] In addition, the first self-locking mechanism of the present invention can be such that the first angle adjuster 54 can be locked with the connecting sleeve 51 when there is no external force, and the first angle adjuster 54 can be unlocked under the action of external force, so as to rotate.

[0084] The first interlocking mechanism of the present invention can be that the first angle adjuster 54 can be locked with the connecting sleeve 51 without external force, and the first angle adjuster 54 and the connecting sleeve 51 are unlocked under external force, so as to rotate.

[0085] The first chuck mechanism of the utility model can be provided with protrusions (or grooves) arranged at intervals on the first angle adjuster 54, and the connecting sleeve 51 is correspondingly provided with grooves (or protrusions). When the first angle adjuster 54 is rotated, hard friction is formed between it and the connecting sleeve 51.

[0086] The first gear mechanism of the present invention can be a plurality of gears meshing with each other to realize the rotation between the first angle adjuster 54 and the connecting sleeve 51 .

[0087] like Figure 3 As shown, a level 52 is also provided on the connecting sleeve 51 , and the level 52 can be used to calibrate the relative horizontal reference plane (ie, XY plane) of the needle 7 , and the horizontal reference plane of the needle 7 can be adjusted through the universal shaping tube 4 .

[0088] like Figure 3 , Figure 5 and Fig. 9As shown, a support plate 541 is provided on the first angle adjuster 54, a rotation groove 551 is provided on the first side of the second angle adjuster 55, and the support plate 541 is arranged in the rotation groove 551. The support plate 541 is rotationally connected with the rotation groove 551 through a second rotation shaft 584, wherein the axial direction of the second rotation shaft 584 (i.e., the Y-axis direction) is perpendicular to the axial direction of the second angle adjuster 55 (i.e., the X-axis direction), and the second rotation shaft 584 passes through two opposite side walls of the support plate 541 and is connected with two opposite side walls of the rotation groove 551, so that the second angle adjuster 55 can rotate around the axial direction of the second angle adjuster 55.

[0089] The second elastic pin mechanism 58 includes a second elastic pin 581, a second mounting hole 582, and a second positioning groove 583. The second mounting hole 582 is provided on the side wall of one of the support plate 541 and the rotation groove 551, the second elastic pin 581 is provided in the second mounting hole 582, the second positioning groove 583 is provided on the side wall of the other of the support plate 541 and the rotation groove 551, and the second elastic pin 581 can be retracted into the second mounting hole 582 or extended from the second mounting hole 582 to the second positioning groove 583.

[0090] like Figure 5 In the example shown, the second mounting hole 582 is disposed on one of the side walls of the support plate 541. Fig.10 As shown, the second positioning groove 583 is provided on the side wall of the rotation groove 551 that contacts the support plate 541. The number of the second mounting holes 582 is multiple, and they are arranged at equal intervals on the side wall of the support plate 541 along the circumference of the second rotation axis 584. Similarly, the number of the second positioning grooves 583 is multiple, and they are arranged at equal intervals on the side wall of the rotation groove 551 along the circumference of the second rotation axis 584.

[0091] The second elastic pin 581 may also adopt the structure of an elastic ball pin. Fig.11 Therefore, it can be understood that when the second angle adjuster 55 is rotated, the second mounting hole 582 is staggered with the corresponding second positioning groove 583, and the side wall of the rotating groove 551 will apply force to the second elastic pin 581, so that the second elastic pin 581 retracts into the second mounting hole 582, so that the second angle adjuster 55 can be rotated smoothly, and when the second elastic pin 581 is rotated to face the other second positioning groove 583, the pressure on the second elastic pin 581 is eliminated, so that the second elastic pin 581 can enter the first positioning groove 533, thereby completing an angle adjustment of the second angle adjuster 55.

[0092] Similarly, in order to ensure that the second angle adjuster 55 rotates to the same angle each time, the number of the second positioning slots 583 needs to be an even multiple of the number of the second mounting holes 582. That is, after the second angle adjuster 55 rotates to the same angle each time, the second elastic pins 581 in each second mounting hole 582 can enter the corresponding second positioning slots 583. Fig.10 As shown, the number of the second positioning grooves 583 is 24, that is, the angle α between two adjacent first positioning grooves 533 is 15°. Figure 5 As shown, the number of the second mounting holes 582 and the number of the second elastic pins 581 are both 6. Therefore, each time the second angle adjuster 55 is rotated once, it rotates 15°, that is, the second puncture angle θ of the needle 7 is increased or decreased by 15°.

[0093] like Fig.14 As shown, in the XZ plane, when the axial direction of the needle 7 coincides with the vertical direction, the second puncture angle θ of the needle 7 is 0. When the second angle adjuster 55 rotates clockwise, the second puncture angle θ of the needle 7 is positive; when the second angle adjuster 55 rotates counterclockwise, the second puncture angle θ of the needle 7 is negative. Fig.15 As shown, the point where the lesion is located is point O, and the vertical direction above point O is shown by a dotted line. By rotating the second angle adjuster 55 clockwise, the angle between the needle 7 and the vertical direction is +θ.

[0094] like Figure 3 As shown, a first rotating shaft 534 is connected between the first angle adjuster 54 and the connecting sleeve 51 . The first rotating shaft 534 is coaxial with the first angle adjuster 54 and the connecting sleeve 51 , that is, the first angle adjuster 54 can rotate around the axial direction of the first rotating shaft 534 .

[0095] like Fig. 9 As shown, an inclinometer 56 is also provided on two opposite side walls of the second angle adjuster 55. Grooves 555 are also provided on the outer sides of the rotating groove 551 on the second angle adjuster 55, which are used to install the inclinometer 56. The inclinometer 56 can be a liquid inclinometer, which is used to calibrate the second puncture angle θ of the needle 7. The inclinometers 56 on the left and right sides of the second angle adjuster 55 can conveniently observe the second puncture angle θ of the needle 7 when the needle 7 is at different first puncture angles β.

[0096] In addition, the second self-locking mechanism, the second interlocking mechanism, the second chuck mechanism and the first gear mechanism of the present invention may be similar to the aforementioned first self-locking mechanism, the first interlocking mechanism, the first chuck mechanism and the first gear mechanism, and the present invention will not elaborate on this.

[0097] like Fig. 9 and Fig.10As shown, a connector 552 is provided on the second side of the second angle adjuster 55, and the connector 552 is used to connect with the needle locking member 57 (such as Figure 2 As shown in Fig. 9 As shown, the connector 552 is provided with a first through slot 553 extending along the axial direction of the second angle adjuster 55. The first through slot 553 is a U-shaped slot, so the needle 7 can be easily inserted into the first through slot 553 from the end of the first through slot 553 (as shown in FIG. Figure 1a When the needle 7 is inserted into the first through slot 553 , the connector 552 can be screwed into the needle locking member 57 , thereby fixing the needle 7 between the connector 552 and the needle locking member 57 .

[0098] In order to avoid damaging the coating on the surface of the needle 7 when locking, the needle locking member 57 can be a non-metallic member (such as a plastic member). In addition, the non-metallic member can also overcome the difficulty of misleading images caused by metal parts during CT scanning. Therefore, it can be understood that the base plate 1, the universal shaping tube 4, the adjustment clamping mechanism 5 and the auxiliary clamping mechanism 6 of the utility model and the parts included therein can all be made of non-metallic materials (such as plastic).

[0099] The adjusting clamping mechanism 5 and the auxiliary clamping mechanism 6 and the parts or components included therein are all disposable sterile consumables, which can be applied to the aseptic processing environment. A disposable sterile cover can be put on the universal shaping tube 4, and the disposable sterile cover can be removed after the operation, so that the universal shaping tube 4 can still be reused. The base plate 1 is wiped with alcohol before and after the operation, which can meet the use requirements of the clinical aseptic environment and can be reused.

[0100] like Fig.10 As shown, the connector 552 is also provided with a through hole 554 extending in a direction perpendicular to the extension direction of the first through slot 553, and the needle 7 can also be inserted into the through hole 554. Fig.16 As shown, the needle 7 is in the sideways puncture state, wherein the extension direction of the needle body 71 of the needle 7 is consistent with the Y-axis direction. Figure 1a and Figure 1b The needle 7 shown in the figure) is blocked by other organs or bones, so you can choose Fig.16 The lateral puncture scheme shown. Since the level 52 is in a vertical state in this state, it cannot be used in this state. Therefore, when puncturing in the lateral position, it is necessary to first calibrate the horizontal zero position by the level 52, and then perform the puncture according to the reference angle and path provided by the lateral position of the CT scan.

[0101] The width of the first through slot 553 is 2mm-4mm, which can be adapted to the clamping and fixing of needles 7 with different specifications of extension tubes. For example, the width of the first through slot 553 is 4mm, which can be adapted to the clamping of needles 7 with an outer diameter of 1.0-3.0mm. The inner diameter of the through hole 554 is 1mm-3mm, which can be adapted to the clamping of needles in the side puncture scheme.

[0102] like Figure 8 As shown, the auxiliary clamping mechanism 6 includes a clamping head 61, which can have the same specifications as the connecting head 552 of the second angle adjuster 55, so the clamping head 61 can cooperate with the needle locking member 57 to clamp the needle 7 therebetween. The clamping head 61 is provided with a second through groove 611 extending along its axial direction, and the needle 7 can be accommodated in the second through groove 611.

[0103] like Figure 1b As shown, the auxiliary clamping mechanism 6 can play an auxiliary clamping role for the needle 7 with the extension tube 73. The auxiliary clamping mechanism 6 can clamp the extension tube 73 of the needle 7 (specifically, can clamp the connection between the extension tube 73 and the handle 72 of the needle 7), so that the handle 72 of the needle 7 can be clamped at the same time, thereby preventing the handle 72 of the needle 7 with the extension tube 73 from sagging and affecting the surgical process.

[0104] The second through groove 611 can also have the same specifications as the first through groove 553, and the side of the clamping head 61 connected to the universal shaping tube 4 and the side of the connecting sleeve 51 connected to the universal shaping tube 4 also have the same specifications. Therefore, the adjustment clamping mechanism 5 and the auxiliary clamping mechanism 6 are interchangeable and can be used in a clinical environment where two or more needles work simultaneously.

[0105] The other end of the clamping head 61 can be fixedly connected to the universal shaping tube 4 by means of screws (plastic knurled screws), pins, etc., or fixedly connected to the universal shaping tube 4 by means of clamping, bonding, welding, etc. Figure 1b As shown in FIG. 1 , the extension tube can be placed in the second through slot 611 of the auxiliary clamping mechanism 6 and fixed by the needle locking member 57. In addition, the auxiliary clamping mechanism 6 can also be applied to clinical environments where the accuracy requirements for the first puncture angle β and the second puncture angle θ of the needle 7 are not high.

[0106] Similarly, the end of the connecting sleeve 51 away from the first angle adjuster 54 can be fixedly connected to the universal shaping tube 4 by means of screws (plastic knurled screws), pins, etc., or fixedly connected to the universal shaping tube 4 by means of clamping, bonding, welding, etc.

[0107] The other end of the universal shaped tube 4 can also be fixedly connected to the base plate 1 through the connecting tube 2. The universal shaped tube 4 and the connecting tube 2 can be connected by means of a plastic knurled screw 3 or the like. The universal shaped tube 4 can change its shape arbitrarily, thereby meeting the adjustment requirements of any body position and any lesion position of the human body, and is more user-friendly.

[0108] When in use, the base plate 1 can be placed under the patient's body, and the base plate 1 can be relatively fixed under the patient's body by the patient's own weight. Therefore, the base plate 1 is fixed relative to the patient, and can be considered movable relative to the bed, thereby solving the problem of a single fixing method and limitations of the base plate 1.

[0109] In addition, the substrate 1 is made of a high-plasticity, high-strength plastic plate and can be adapted to a variety of operating tables, such as an arc-groove CT bed. When a patient lies on the substrate 1, the substrate 1 can undergo plastic deformation to eliminate the discomfort felt by the patient when lying on it.

[0110] Example 2

[0111] like Fig.17 As shown, the difference between this embodiment 2 and the above-mentioned embodiment 1 is that two auxiliary clamping mechanisms 6 are provided in this embodiment 2.

[0112] Example 3

[0113] like Fig.18 As shown, the difference between this embodiment 3 and the above-mentioned embodiment 1 is that two adjusting clamping mechanisms 5 are provided in this embodiment 2.

[0114] Example 4

[0115] The utility model also provides a puncture system, including the needle puncture guide device described in the above-mentioned embodiments 1 to 3, and also including a needle 7, which is connected to the adjustment clamping mechanism 5 and / or the auxiliary clamping mechanism 6 in the needle puncture guide device.

[0116] like Figure 1a As shown, the needle 7 may include a needle body 71 and a handle 72 connected to the needle body 71. During operation, the handle 72 may be held to puncture the needle body 71 to the lesion. When clamping the needle 7, the needle body 71 may be inserted into the first through groove 553 to fix the needle 7 on the adjusting clamping mechanism 5 (eg, Figure 1a and Fig.18 Alternatively, the needle body 71 may be inserted into the second through groove 611 to fix the needle 7 on the auxiliary clamping mechanism 6 (as shown in FIG. Fig.17 shown).

[0117] like Figure 1bAs shown, the needle 7 may further include an extension tube 73 connected between the needle body 71 and the handle 72. When clamping the needle 7, the needle body 71 may be inserted into the first through groove 553, and the extension tube 73 may be inserted into the second through groove 611, so that the various parts of the needle 7 may be fixed to the adjusting clamping mechanism and the auxiliary clamping mechanism 6, respectively. Fig.13 and Fig.15 As shown, when the puncture system of the present invention is being punctured, it is first assisted by CT scanning and developing a locator (or medical locator grid) to determine the parameters such as the puncture point (point O) of the human skin, the puncture path, the puncture angle (the first puncture angle β and the second puncture angle θ of the needle 7), and the puncture distance (the distance from the edge of the lesion to the puncture point). Then, the needle 7 is clamped on the adjustment clamping mechanism 5, the needle puncture guide device is moved above the lesion area outside the human body, and the horizontality is adjusted according to the level meter 52, the first puncture angle β of the needle 7 is adjusted according to the first angle adjuster 54, and the second puncture angle θ of the needle 7 is adjusted according to the second angle adjuster 55, and then the adjustment clamping mechanism 5 is moved until the needle tip of the needle 7 touches the puncture point (point O) marked on the skin, and the doctor can perform puncture in combination with the puncture distance provided by the CT scan.

[0118] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A needle puncture guide device, characterized in that: It comprises an adjusting clamping mechanism (5) and / or an auxiliary clamping mechanism (6) for clamping a needle (7), wherein the adjusting clamping mechanism (5) comprises a first angle adjuster (54) and a second angle adjuster (55) for clamping the needle (7), wherein the first angle adjuster (54) and the second angle adjuster (55) are rotatably connected; When the first angle adjuster (54) is rotated, a first puncture angle β of the needle (7) can be changed; when the second angle adjuster (55) is rotated, a second puncture angle θ of the needle (7) can be changed; and the first puncture angle β and the second puncture angle θ are puncture angles in different planes.

2. The needle puncture guide device according to claim 1, characterized in that: The first puncture angle β is between -180° and +180°, and the second puncture angle θ is between -90° and +90°.

3. The needle puncture guide device according to claim 1 or 2, characterized in that: The adjusting and clamping mechanism (5) further comprises a connecting sleeve (51), The first angle adjuster (54) is rotationally connected to the connecting sleeve (51) via one or more of a first elastic pin mechanism (53), a first self-locking mechanism, a first interlocking mechanism, a first chuck mechanism or a first gear mechanism, so that the first angle adjuster (54) can rotate relative to the connecting sleeve (51) around its axial direction; and / or The second angle adjuster (55) is rotationally connected to the first angle adjuster (54) via one or more of a second elastic pin mechanism (58), a second self-locking mechanism, a second interlocking mechanism, a second chuck mechanism and a second gear mechanism, so that the second angle adjuster (55) can rotate radially relative to the first angle adjuster (54).

4. The needle puncture guide device according to claim 3, characterized in that: The first elastic pin mechanism (53) comprises: A first elastic pin (531); a first mounting hole (532), which is arranged on an end surface of one of the first angle adjuster (54) and the connecting sleeve (51), and the first elastic pin (531) is arranged in the first mounting hole (532); and A first positioning groove (533) is arranged on the end surface of the other of the first angle adjuster (54) and the connecting sleeve (51), and the first elastic pin (531) can be retracted into the first mounting hole (532) or extended from the first mounting hole (532) to the first positioning groove (533).

5. The needle puncture guide device according to claim 4, characterized in that: A first rotating shaft (534) is also connected between the first angle adjuster (54) and the connecting sleeve (51), and the first rotating shaft (534) is coaxial with the first angle adjuster (54) and the connecting sleeve (51); The first mounting holes (532) and the first positioning grooves (533) are respectively arranged at equal intervals along the circumference of the first rotating shaft (534), and the number of the first positioning grooves (533) is an even multiple of the number of the first mounting holes (532).

6. The needle puncture guide device according to claim 3, characterized in that: The first angle adjuster (54) is provided with a support plate (541), a first side of the second angle adjuster (55) is provided with a rotation groove (551), and the support plate (541) is arranged in the rotation groove (551); The second elastic pin mechanism (58) comprises: A second elastic pin (581); a second mounting hole (582) disposed on a side wall of one of the support plate (541) and the rotation groove (551), wherein the second elastic pin (581) is disposed in the second mounting hole (582); and A second positioning groove (583) is arranged on the side wall of the other of the support plate (541) and the rotating groove (551), and the second elastic pin (581) can be retracted into the second mounting hole (582) or extended from the second mounting hole (582) to the second positioning groove (583).

7. The needle puncture guide device according to claim 6, characterized in that: The support plate (541) is rotationally connected to the rotation groove (551) via a second rotation shaft (584), and the axial direction of the second rotation shaft (584) is perpendicular to the axial direction of the second angle adjuster (55); The second mounting holes (582) and the second positioning grooves (583) are respectively arranged at equal intervals along the circumference of the second rotating shaft (584), and the number of the second positioning grooves (583) is an even multiple of the number of the second mounting holes (582).

8. The needle puncture guide device according to claim 3, characterized in that: An angle indicating mark (511) is also provided on the connecting sleeve (51), and a scale layer (542) is provided on the outer wall of the first angle adjuster (54) along its axial direction. When the angle indicating mark (511) points to the scale on the scale layer (542), it can indicate the angle through which the first angle adjuster (54) has rotated.

9. The needle puncture guide device according to claim 3, characterized in that: A level gauge (52) is also provided on the connecting sleeve (51), and / or an inclinometer (56) is also provided on two opposite side walls of the second angle adjuster (55).

10. The needle puncture guide device according to claim 1 or 2, characterized in that: A connector (552) is provided on the second side of the second angle adjuster (55), and the connector (552) is used to be connected to the needle locking member (57); The connecting head (552) is provided with a first through groove (553) extending along the axial direction of the second angle adjuster (55) and a through hole (554) extending along an extension direction perpendicular to the first through groove (553), and the needle (7) can be accommodated in the first through groove (553) or the through hole (554).

11. The needle puncture guide device according to claim 10, characterized in that: The width of the first through groove (553) is 2 mm to 4 mm, and the inner diameter of the through hole (554) is 1 mm to 3 mm.

12. The needle puncture guide device according to claim 1 or 2, characterized in that: It also comprises a base plate (1) and a universal shaping tube (4) arranged on the base plate (1), wherein the universal shaping tube (4) is respectively connected to the adjusting clamping mechanism (5) and the auxiliary clamping mechanism (6).

13. The needle puncture guide device according to claim 1 or 2, characterized in that: The auxiliary clamping mechanism (6) comprises a clamping head (61), and the clamping head (61) is used to be connected to the needle locking member (57); the clamping head (61) is provided with a second through groove (611) extending along its axial direction, and the needle (7) can be accommodated in the second through groove (611).

14. The needle puncture guide device according to claim 1 or 2, characterized in that: The number of the adjusting clamping mechanism (5) and the number of the auxiliary clamping mechanism (6) are both one or more.

15. A puncture system, comprising the needle puncture guide device according to any one of claims 1 to 14, characterized in that: It also comprises a needle (7), wherein the needle (7) is connected to the adjusting clamping mechanism (5) and / or the auxiliary clamping mechanism (6) in the needle puncture guide device.

Images