Fixing device applied to puncture surgery navigation positioning system and corresponding system

Abstract

The utility model relates to a fixing device applied to a puncture surgery navigation positioning system and a corresponding system. The fixing device comprises a puncture instrument positioning module, the puncture instrument positioning module comprises a puncture instrument connecting mechanism, a first sensor fixing assembly butt joint mechanism, a first connecting assembly of a calibration ruler abutting and pushing mechanism and a calibration ruler assembly comprising a graduated scale mechanism, comprising a first connecting assembly docking mechanism and a first sensor fixing part which are connected with each other; the graduated scale mechanism comprises scale marks, the first connecting assembly selectively abuts against the graduated scale mechanism through the calibration ruler abutting-pushing mechanism, and the first connecting assembly abutting-joint mechanism is connected with the first sensor fixing assembly abutting-joint mechanism. The stability is improved, the calibration time is shortened, the possibility of influencing the operation process is reduced, the influence on the navigation precision is reduced, and the method is more convenient to operate, more stable and better in adaptability.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a fixation device and a corresponding system for use in a puncture surgery navigation and positioning system. Background Technology

[0002] Navigation and positioning systems for puncture procedures can greatly assist in making surgeries more precise. For example, in the existing technology, electromagnetic navigation-based puncture guidance systems are an advanced technology in the field of medical device puncture and intervention. This technology uses the simulation and display of the complete projection and predicted path of the puncture instrument on the ultrasound plane when the puncture instrument and the ultrasound plane are not coplanar, to guide the doctor to perform the puncture operation under ultrasound imaging, thereby improving the accuracy and safety of the surgery.

[0003] The puncture surgery navigation and positioning system consists of a computer with navigation software, a navigation device with a navigation host and a magnetic field generator, an ultrasound device with an ultrasound host and a probe, puncture instruments, electromagnetic sensors for the puncture instruments, and electromagnetic sensors for the ultrasound device.

[0004] Among them, the electromagnetic sensor of the puncture instrument is used to bind to the puncture instrument, and the electromagnetic sensor of the ultrasound equipment is used to bind to the ultrasound equipment. When in use, the relative position of the ultrasound probe and the puncture instrument can be calculated by obtaining the relative coordinates of the electromagnetic sensor of the puncture instrument and the electromagnetic sensor of the ultrasound equipment in the magnetic field.

[0005] In the existing technology, the binding between the electromagnetic sensor of the puncture instrument and the detection puncture instrument, and the binding between the electromagnetic sensor of the ultrasound device and the detection ultrasound device, are all achieved by using medical tape. This binding method results in the relative positions between the electromagnetic sensor of the puncture instrument and the detection puncture instrument, and between the electromagnetic sensor of the ultrasound device and the detection ultrasound device, not being fixed after each binding. Therefore, in order to ensure accuracy during use, a calibration operation is required after each binding.

[0006] However, the calibration process is quite complicated. If the electromagnetic sensors of the puncture instruments and the detection puncture instruments, as well as the electromagnetic sensors of the ultrasound equipment and the detection ultrasound equipment, need to be bound together for each surgery, it will take up a lot of time before the surgery. Sometimes, the binding method of the tape may be unstable, which may require repeated binding and recalibration, thus affecting the progress of the surgery.

[0007] Meanwhile, the bonding method of the tape is unstable, which may cause the relevant sensors to shift during the operation, thus affecting the navigation accuracy. Utility Model Content

[0008] In view of the above-mentioned deficiencies of the prior art, the present invention provides a fixation device and corresponding system for puncture surgery navigation and positioning systems that can at least reduce the complexity of calibration, reduce calibration time, are easy to operate, and have good adaptability.

[0009] To achieve the above objectives, the fixation device and corresponding system of this utility model for use in a puncture surgery navigation and positioning system have the following configuration:

[0010] The fixation device used in a puncture surgery navigation and positioning system is characterized in that it includes a puncture instrument positioning module, which comprises:

[0011] The first connecting component includes a puncture instrument connecting mechanism, a first sensor fixing component docking mechanism, and a calibration ruler pushing mechanism that are interconnected.

[0012] A calibration ruler assembly includes a scale mechanism with scale markings, and a first connecting component selectively contacts the scale mechanism via the calibration ruler pushing mechanism.

[0013] The first sensor fixing assembly includes a first connecting assembly docking mechanism and a first sensor fixing part that are connected to each other, wherein the first connecting assembly docking mechanism is connected to the first sensor fixing assembly docking mechanism.

[0014] The aforementioned fixation device applied to a puncture surgery navigation and positioning system includes a puncture instrument connection mechanism comprising a base and a first locking screw. The base includes a first through hole and a second through hole. The first through hole is used for the puncture component of the puncture instrument to pass through. The second through hole extends through the side wall of the base to the first through hole. The first locking screw is threadedly connected to the second through hole, and the first locking screw can be rotated into the first through hole.

[0015] In the aforementioned fixation device applied to a puncture surgery navigation and positioning system, the first sensor fixation assembly docking mechanism is located on the side wall of the base, and the calibration ruler pushing mechanism is formed by the surface of any port of the first through hole in the base.

[0016] In the aforementioned fixation device applied to a puncture surgery navigation and positioning system, the first sensor fixation component docking mechanism and the first connection component docking mechanism are composed of a first set of mating components, so that the first connection component docking mechanism and the first sensor fixation component docking mechanism can be detachably connected.

[0017] The aforementioned fixation device for a puncture surgery navigation and positioning system, wherein the calibration ruler assembly further includes a positioning mechanism;

[0018] The positioning mechanism is slidably mounted on the scale mechanism.

[0019] The aforementioned fixation device for a puncture surgery navigation and positioning system, wherein the scale mechanism includes a scale body, a puncture instrument guide, and a second locking screw:

[0020] The scale markings are provided on the main body of the scale, and the side of the main body of the scale with the scale markings is provided with a puncture needle placement groove;

[0021] The puncture instrument guide is connected to the scale body. The puncture instrument guide has a third through hole coaxially arranged with the puncture needle placement groove. The puncture instrument guide also has a fourth through hole. The fourth through hole is not coaxial with the third through hole and extends through the puncture instrument guide to the third through hole. The second locking screw is threadedly connected to the fourth through hole and can be rotated into the third through hole.

[0022] The aforementioned fixation device for a puncture surgery navigation and positioning system, wherein the positioning mechanism includes a slider component and a third locking screw;

[0023] The slider component includes a slider body and a puncture instrument stop. The slider body is slidably fitted onto the scale mechanism. The puncture instrument stop extends from the slider body into the puncture needle placement groove. The slider body is also provided with a fifth through hole. The third locking screw is threadedly connected to the fifth through hole, and the third locking screw can be selectively rotated to the scale mechanism to achieve locking and unlocking between the slider component and the scale mechanism.

[0024] The aforementioned fixation device for a puncture surgery navigation and positioning system further includes a first sensor positioning module, which comprises:

[0025] The second connecting component includes a first main body connecting mechanism, a first ultrasonic probe connecting mechanism, and a second sensor fixing component docking mechanism, wherein the first ultrasonic probe connecting mechanism and the second sensor fixing component docking mechanism are respectively disposed on the first main body connecting mechanism;

[0026] The first ultrasonic probe positioning assembly includes a first ultrasonic probe positioning mechanism, wherein the first ultrasonic probe positioning mechanism is detachably connected to the first ultrasonic probe connecting mechanism.

[0027] The second sensor fixing assembly includes a second connecting component docking mechanism and a second sensor fixing part that are interconnected, wherein the second connecting component docking mechanism and the second sensor fixing assembly docking mechanism are detachably connected.

[0028] The aforementioned fixation device applied to a puncture surgery navigation and positioning system, wherein the first main body connecting mechanism includes a first enclosing member, a second enclosing member, and a locking member;

[0029] The first end of the first enclosing member is hinged to the first end of the second enclosing member, and the second end of the first enclosing member is selectively attached to the second end of the second enclosing member. The locking member is used to lock or unlock the second end of the first enclosing member and the second end of the second enclosing member.

[0030] The first ultrasonic probe connection mechanism is located on the inner wall of the first enclosure member and / or the second enclosure member;

[0031] The second sensor fixing assembly docking mechanism is located on the outer wall of the first enclosure member and / or the second enclosure member.

[0032] The aforementioned fixation device applied to a puncture surgery navigation and positioning system, wherein the first ultrasound probe connection mechanism includes a first positioning groove and a second positioning groove, the first positioning groove and the second positioning groove being respectively disposed on the inner sidewalls of the first enclosure member and the second enclosure member;

[0033] The first ultrasonic probe positioning mechanism includes a first positioning protrusion and a second positioning protrusion. Both the first positioning protrusion and the second positioning protrusion are used to be disposed on the first ultrasonic probe. The shape and position of the first positioning protrusion match the shape and position of the first positioning groove, and the shape and position of the second positioning protrusion match the shape and position of the second positioning groove.

[0034] In the aforementioned fixation device applied to a puncture surgery navigation and positioning system, the shapes of the first positioning groove and the second positioning groove are inconsistent, and / or

[0035] The first positioning groove and the second positioning groove are located in asymmetrical positions.

[0036] In the aforementioned fixation device applied to a puncture surgery navigation and positioning system, the second sensor fixation component docking mechanism and the second connection component docking mechanism are composed of a second set of insertion components.

[0037] The aforementioned fixing device applied to the navigation and positioning system for puncture surgery is further provided with a backup docking mechanism on the first main body connecting mechanism.

[0038] The aforementioned fixation device for a puncture surgery navigation and positioning system further includes a second sensor positioning module, which comprises:

[0039] The third connecting component includes a second main body connecting mechanism, a second ultrasonic probe connecting mechanism, and a third sensor fixing component docking mechanism, wherein the second ultrasonic probe connecting mechanism and the third sensor fixing component docking mechanism are respectively disposed on the second main body connecting mechanism;

[0040] The second ultrasonic probe positioning assembly includes a second ultrasonic probe positioning mechanism, which is disposed on the second main body connecting mechanism and is used to position the second ultrasonic probe fixed on the second main body connecting mechanism.

[0041] The third sensor fixing assembly includes a third connecting assembly docking mechanism and a third sensor fixing part that are interconnected, wherein the third connecting assembly docking mechanism and the third sensor fixing assembly docking mechanism are detachably connected.

[0042] The aforementioned fixation device for a puncture surgery navigation and positioning system, wherein the second main body connecting mechanism includes a second ultrasound probe receiving groove;

[0043] The second ultrasonic probe connection mechanism includes a first hook module, which is located on the side of the second main body connection mechanism where the second ultrasonic probe receiving groove is provided;

[0044] The second ultrasonic probe positioning mechanism is located at the edge of the second ultrasonic probe receiving groove.

[0045] The aforementioned fixation device applied to a puncture surgery navigation and positioning system, wherein the third sensor fixation component docking mechanism includes a second hook module, and the second hook module is provided with a positioning groove mechanism;

[0046] The third connecting component docking mechanism is provided with a positioning protrusion mechanism, the shape and position of which match the shape and position of the positioning groove mechanism.

[0047] The aforementioned fixation device applied to a puncture surgery navigation and positioning system, wherein the positioning groove mechanism includes a third positioning groove and a fourth positioning groove, the third positioning groove and the fourth positioning groove are respectively disposed on two opposite surfaces in the second hook module, and the third positioning groove and the fourth positioning groove are asymmetrical;

[0048] The positioning bump mechanism includes a third positioning bump and a fourth positioning bump. Both the third positioning bump and the fourth positioning bump are used to be mounted on the second ultrasonic probe. The shape and position of the third positioning bump match the shape and position of the third positioning groove, and the shape and position of the fourth positioning bump match the shape and position of the fourth positioning groove.

[0049] The main feature of this puncture surgery navigation and positioning system is that the system includes a puncture instrument, a first sensor, and the aforementioned fixation device applied to the puncture surgery navigation and positioning system.

[0050] The puncture component of the puncture instrument can be selectively inserted into the puncture instrument connection mechanism;

[0051] Furthermore, the puncture component can be selectively placed on the scale mechanism;

[0052] When the puncture component is inserted into the puncture instrument connecting mechanism, and the calibration ruler pushing mechanism is in contact with the scale mechanism, the distance from the first connecting component to the end of the puncture component located on the scale mechanism can be indicated by the scale markings.

[0053] The first sensor is connected to the first sensor fixing part.

[0054] The aforementioned fixation device for a puncture surgery navigation and positioning system further includes a first ultrasound probe and a second sensor.

[0055] The first ultrasonic probe positioning mechanism in the fixing device is fixedly mounted on the first ultrasonic probe;

[0056] The first ultrasonic probe can be selectively nested within the first main body connecting mechanism of the fixing device;

[0057] The second sensor is connected to the second sensor fixing part in the fixing device.

[0058] The aforementioned fixation device for a puncture surgery navigation and positioning system further includes a second ultrasound probe and a third sensor.

[0059] The second ultrasonic probe is nested and connected to the second ultrasonic probe connection mechanism in the fixing device;

[0060] The third sensor is connected to the third sensor fixing part in the fixing device.

[0061] This utility model relates to a fixation device and corresponding system for use in a navigation and positioning system for puncture surgery.

[0062] By setting up a puncture instrument positioning module, the relative position between the puncture instrument and the first sensor can be ensured to be in a preset position by using a calibration ruler assembly. At the same time, the first connecting assembly and the first sensor fixing assembly are used together to ensure the convenience of docking the puncture instrument and the first sensor. Since the relative position is fixed, the complexity of repeatedly calibrating the puncture instrument can be avoided. At the same time, it can also meet the needs of different puncture lengths.

[0063] By setting up a first sensor positioning module, the connection speed between the first ultrasonic probe and the second sensor can be accelerated. Since the first ultrasonic probe connection mechanism and the second sensor fixing component docking mechanism are both located on the first main body connection mechanism, their relative positions are fixed, thereby ensuring that the relative positions of the first ultrasonic probe and the second sensor connected by the first sensor positioning module are fixed. This avoids the complexity of repeatedly calibrating the first ultrasonic probe and improves operational efficiency.

[0064] Similarly, by setting up a second sensor positioning module, the connection speed between the second ultrasonic probe and the third sensor can be accelerated. Since the second ultrasonic probe connection mechanism and the third sensor fixing component docking mechanism are both located on the second main body connection mechanism, their relative positions are fixed, thereby ensuring that the relative positions of the second ultrasonic probe and the third sensor connected through the second sensor positioning module are fixed. This avoids the complexity of repeatedly calibrating the second ultrasonic probe and improves operational efficiency.

[0065] The fixing device and corresponding system for the navigation and positioning system of puncture surgery in this utility model can effectively solve the problem of unstable binding method of adhesive tape. At the same time, by designing a dedicated positioning module, the calibration time can be effectively reduced, the possibility of affecting the surgical process can be reduced, and the dedicated positioning module can effectively avoid the impact of adhesive tape binding method on navigation accuracy, making it easier to operate, more stable, and more adaptable. Attached Figure Description

[0066] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.

[0067] Figure 1 This is a schematic diagram showing the state of the puncture instrument positioning module combined with the puncture instrument and the first sensor in one embodiment.

[0068] Figure 2 This is a schematic diagram showing the state of the puncture instrument positioning module and the puncture instrument combined in one embodiment.

[0069] Figure 3 This is a schematic diagram of the docking process between the first connecting component and the puncture instrument and the first sensor in one embodiment.

[0070] Figure 4 This is a schematic diagram of the docking state of the first connecting component with the puncture instrument and the first sensor in one embodiment.

[0071] Figure 5 This is a partially enlarged view showing the relative positions of the positioning mechanism, scale mechanism, and puncture instrument in one embodiment.

[0072] Figure 6 This is a schematic diagram of the structure of the first connecting component in one embodiment.

[0073] Figure 7 This is a cross-sectional view of the first connecting component in one embodiment.

[0074] Figure 8 This is a schematic diagram showing the relative positions of the first sensor fixing assembly and the first sensor in one embodiment.

[0075] Figure 9 This is a schematic diagram of the combined state of the first sensor positioning module, the first ultrasonic probe, and the second sensor in one embodiment.

[0076] Figure 10 This is a schematic diagram showing the relative position of the first ultrasonic probe positioning mechanism and the first ultrasonic probe from a first viewing angle in one embodiment.

[0077] Figure 11 This is a schematic diagram showing the relative positions of the first ultrasonic probe positioning mechanism and the second viewpoint of the first ultrasonic probe in one embodiment.

[0078] Figure 12 This is a schematic diagram of the combined state of the second sensor fixing component and the second sensor in one embodiment.

[0079] Figure 13 This is a first-view structural schematic diagram of the second connecting component in one embodiment.

[0080] Figure 14 This is a structural schematic diagram of the second connecting component from a second perspective in one embodiment.

[0081] Figure 15 This is a schematic diagram of the combined state of the second sensor positioning module, the second ultrasonic probe, and the third sensor from a first perspective in one embodiment.

[0082] Figure 16 This is a schematic diagram of the combined state of the second sensor positioning module and the second ultrasonic probe in one embodiment.

[0083] Figure 17 This is a cross-sectional view of the second sensor positioning module and the second ultrasonic probe in one embodiment.

[0084] Figure 18 This is a schematic diagram of the structure of the second sensor positioning module in one embodiment.

[0085] Figure 19 This is a schematic diagram of the combined state of the third sensor fixing component and the third sensor in one embodiment.

[0086] Figure Labels

[0087] 1. Puncture instrument positioning module

[0088] 11 First connecting component

[0089] 111 Puncture Instrument Connection Mechanism

[0090] 1111 base

[0091] 11111 First Through Hole

[0092] 11112 Second Through Hole

[0093] 1112 First locking screw

[0094] 112 First sensor fixing assembly docking mechanism

[0095] 113 Standard Length Push Mechanism

[0096] 12-size standard assembly

[0097] 121 scale mechanism

[0098] 1211 Main body of the ruler

[0099] 12111 Scale Markings

[0100] 12112 Puncture needle placement groove

[0101] 1212 Guide section of puncture instrument

[0102] 12121 Third through hole

[0103] 12122 Fourth through hole

[0104] 1213 Second locking screw

[0105] 122 positioning mechanism

[0106] 1221 Slider component

[0107] 12211 Slider main body

[0108] 12212 Puncture instrument stop

[0109] 12213 Fifth through hole

[0110] 1222 Third locking screw

[0111] 13 First sensor fixing assembly

[0112] 131 First connecting component docking mechanism

[0113] 132 First sensor fixing part

[0114] 2 First sensor positioning module

[0115] 21 Second connection component

[0116] 211 First Main Connection Mechanism

[0117] 2111 First Enclosing Component

[0118] 2112 Second Enclosing Component

[0119] 2113 Locking components

[0120] 2114 Backup docking mechanism

[0121] 2121 First positioning groove

[0122] 2122 Second positioning groove

[0123] 213 Second sensor fixing assembly docking mechanism

[0124] 2211 First positioning bump

[0125] 2212 Second positioning bump

[0126] 23 Second sensor mounting assembly

[0127] 231 Second connecting component docking mechanism

[0128] 232 Second sensor fixing part

[0129] 3 Second sensor positioning module

[0130] 31 Third connection component

[0131] 311 Second Main Body Connection Mechanism

[0132] 3111 Second Ultrasonic Probe Receiving Slot

[0133] 312 Second Ultrasonic Probe Connection Mechanism

[0134] 3121 First Claw Module

[0135] 313 Third Sensor Fixing Assembly Docking Mechanism

[0136] 3131 Second Claw Module

[0137] 31311 Third positioning groove

[0138] 31312 Fourth positioning groove

[0139] 321 Second Ultrasonic Probe Positioning Mechanism

[0140] 33 Third sensor mounting assembly

[0141] 3311 Third positioning bump

[0142] 3312 Fourth positioning bump

[0143] 332 Third Sensor Fixing Part

[0144] 4. Puncture instruments

[0145] 5 First Sensor

[0146] 6 First Ultrasonic Probe

[0147] 7 Second Sensor

[0148] 8 Second ultrasonic probe

[0149] 9. Third sensor Detailed Implementation

[0150] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the present utility model is further described below in conjunction with specific illustrations. However, this utility model is not limited to the embodiments described below.

[0151] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0152] The following is combined Figures 1 to 19 The present invention provides a further description of the fixation device and corresponding system used in a puncture surgery navigation and positioning system:

[0153] First aspect:

[0154] This embodiment provides a fixation device for a puncture surgery navigation and positioning system, the fixation device including a puncture instrument positioning module 1, such as... Figures 1 to 8 As shown, the puncture instrument positioning module 1 includes:

[0155] The first connecting component 11 includes a puncture instrument connecting mechanism 111, a first sensor fixing component docking mechanism 112, and a calibration ruler pushing mechanism 113 that are connected to each other.

[0156] The calibration ruler assembly 12 includes a scale mechanism 121, which includes scale markings 12111. The first connecting assembly 11 selectively contacts the scale mechanism 121 through the calibration ruler pushing mechanism 113.

[0157] The first sensor fixing assembly 13 includes a first connecting assembly docking mechanism 131 and a first sensor fixing part 132 that are connected to each other. The first connecting assembly docking mechanism 131 is connected to the first sensor fixing assembly docking mechanism 112.

[0158] In this embodiment, the puncture instrument connection mechanism 111 includes a base 1111 and a first locking screw 1112. The base 1111 includes a first through hole 11111 and a second through hole 11112. The first through hole 11111 is used for the puncture component in the puncture instrument to pass through. The second through hole 11112 penetrates the side wall of the base 1111 and extends to the first through hole 11111. The first locking screw 1112 is threadedly connected to the second through hole 11112, and the first locking screw 1112 can be rotated into the first through hole 11111.

[0159] By screwing the first locking screw 1112 into and out of the first through hole 11111, the puncture instrument can be fixed and released. Since the first connecting component can be movably connected to the puncture instrument, the length can be controlled more flexibly.

[0160] In this embodiment, the first sensor fixing assembly docking mechanism 112 is located on the side wall of the base 1111, and the calibration ruler pushing mechanism 113 is formed by the surface of the base 1111 located at any port of the first through hole 11111.

[0161] In this embodiment, the first sensor fixing component docking mechanism 112 and the first connecting component docking mechanism 131 are composed of a first set of mating components, so that the first connecting component docking mechanism 131 and the first sensor fixing component docking mechanism 112 can be detachably connected.

[0162] like Figure 2 As shown, the first set of mating components can be composed of snap-fit ​​components, but in actual implementation, it is not limited to the example shown in the figure.

[0163] In this embodiment, the calibration ruler assembly 12 further includes a positioning mechanism 122;

[0164] The positioning mechanism 122 is slidably mounted on the scale mechanism 121.

[0165] In this embodiment, the scale mechanism 121 includes a scale body 1211, a puncture instrument guide 1212, and a second locking screw 1213.

[0166] The scale mark 12111 is provided on the main body of the scale 1211, and the side of the main body of the scale 1211 where the scale mark 12111 is provided is provided with a puncture needle placement groove 12112;

[0167] The puncture instrument guide 1212 is connected to the scale body 1211. The puncture instrument guide 1212 has a third through hole 12121 coaxially arranged with the puncture needle mounting groove 12112. The puncture instrument guide 1212 also has a fourth through hole 12122. The fourth through hole 12122 is not coaxial with the third through hole 12121, and the fourth through hole 12122 extends through the puncture instrument guide 1212 to the third through hole 12121. The second locking screw 1213 is threadedly connected to the fourth through hole 12122, and the second locking screw 1213 can be rotated into the third through hole 12121.

[0168] In this embodiment, the positioning mechanism 122 includes a slider component 1221 and a third locking screw 1222;

[0169] The slider component 1221 includes a slider body 12211 and a puncture instrument stop 12212. The slider body 12211 is slidably sleeved on the scale mechanism 121. The puncture instrument stop 12212 extends from the slider body 12211 into the puncture needle placement groove 12112. The slider body 12211 is also provided with a fifth through hole 12213. The third locking screw 1222 is threadedly connected to the fifth through hole 12213, and the third locking screw 1222 can be selectively rotated to the scale mechanism 121 to realize the locking and unlocking of the slider component 1221 and the scale mechanism 121.

[0170] The calibration scale assembly 12 in this embodiment has a structure somewhat similar to a vernier caliper. The positioning mechanism 122 ensures more precise measurement accuracy. When the third locking screw 1222 is loosened, the slider component 1221 can move flexibly on the scale mechanism 121. When the third locking screw 1222 is tightened, the relative position of the slider component 1221 and the scale mechanism 121 is fixed. At this time, the puncture instrument inserted in the first connecting assembly is placed on the scale mechanism 121, with the end of the puncture instrument pressed against the positioning mechanism 122. When the calibration scale pushing mechanism 113 is pressed against the scale mechanism 121, the position of the first connecting assembly on the puncture instrument is accurately ensured.

[0171] The operation process is as follows:

[0172] The puncture instrument 4 can be inserted through the center hole (third through hole 12121) on the front end face of the calibration scale base (i.e., the puncture instrument guide 1212), and finally pushed into the countersunk hole (i.e., the puncture instrument stop part 12212) of the vernier (i.e., the slider component 1221) along the semi-circular groove (i.e., the puncture needle placement groove 12112), thereby ensuring that the puncture instrument 4 is in close contact with the calibration scale base throughout the process. The puncture instrument 4 is fixed by tightening the third locking screw 1222. The distance from the puncture instrument needle tip to the front end face of the calibration scale base is obtained by reading the scale value (the scale has been converted and compensated) corresponding to the front end face of the vernier (i.e., the positioning mechanism 122). Alternatively, the distance can be preset to slide the vernier to the designated position in advance.

[0173] More specific operations can be as follows: Figure 2 As shown, first, the puncture instrument 4 is inserted into the calibration scale assembly 12 after passing through the first connecting assembly. The positioning mechanism 122, formed by the vernier, is slid to the designated scale and then the third locking screw 1222 is tightened to secure it. The puncture instrument 4 is then pushed to the bottom of the countersunk hole of the vernier and the second locking screw 1213 is tightened to secure it. At this point, the first connecting assembly is pressed tightly against the end face of the calibration scale assembly 12, and the second locking screw 1213 is tightened to secure it to the puncture instrument. Finally, the second locking screw 1213 and the third locking screw 1222 are loosened to remove the calibration scale assembly 12. Then, as... Figure 3 As shown, the fixing of the first sensor fixing component and the first connecting component involves docking the first connecting component docking mechanism 131 with the first sensor fixing component docking mechanism 112.

[0174] like Figures 9 to 14 As shown, in this embodiment, the fixing device further includes a first sensor positioning module 2, which includes:

[0175] The second connecting component 21 includes a first main body connecting mechanism 211, a first ultrasonic probe connecting mechanism, and a second sensor fixing component 23 docking mechanism 213. The first ultrasonic probe connecting mechanism and the second sensor fixing component 23 docking mechanism 213 are respectively disposed on the first main body connecting mechanism 211.

[0176] The first ultrasonic probe positioning assembly includes a first ultrasonic probe positioning mechanism 122, which is detachably connected to the first ultrasonic probe connection mechanism.

[0177] The second sensor fixing assembly 23 includes a second connecting assembly docking mechanism 231 and a second sensor fixing part 232 that are connected to each other (in this embodiment, the two are integrally formed structures). The second connecting assembly docking mechanism 231 and the second sensor fixing assembly 23 docking mechanism 213 are detachably connected.

[0178] In practice, the head of the second sensor is sealed with glue inside the second sensor fixing part 232 to ensure a fixed connection.

[0179] In this embodiment, the docking mechanism 213 of the second sensor fixing component 23 is in the form of a snap-fit, and the docking mechanism 231 of the second connecting component is in the form of a corresponding hook, and the two can be detachably connected.

[0180] In this embodiment, the first main body connecting mechanism 211 includes a first enclosing member 2111, a second enclosing member 2112, and a locking member 2113;

[0181] The first end of the first enclosing member 2111 is hinged to the first end of the second enclosing member 2112, the second end of the first enclosing member 2111 is selectively attached to the second end of the second enclosing member 2112, and the locking member 2113 is used to lock or unlock the second end of the first enclosing member 2111 and the second end of the second enclosing member 2112.

[0182] The first ultrasonic probe connection mechanism is located on the inner wall of the first enclosure member 2111 and / or the second enclosure member 2112;

[0183] The docking mechanism 213 of the second sensor fixing assembly 23 is located on the outer wall of the first enclosure member 2111 and / or the second enclosure member 2112.

[0184] like Figure 13 and Figure 14 As shown, in this embodiment, the first main body connecting mechanism 211 is in the shape of a fixed clamp. A first enclosing member 2111 forms the fixed clamp body, a second enclosing member 2112 forms the fixed clamp cover, and a hook on the first enclosing member 2111 and a buckle on the second enclosing member 2112 together form a locking member 2113. In this embodiment, the first enclosing member 2111 and the second enclosing member 2112 are hinged (forming a rotating pair) via a first pin, and the buckle is hinged (forming a rotating pair) to the second enclosing member 2112 via a second pin. After the buckle and the hook are engaged, they can fit together, thereby achieving locking and unlocking operations. The specific shape design of the first main body connecting mechanism 211 can match the supermarket probe and is not limited to the illustrated example.

[0185] The above structural design allows for better fastening and anti-opening operations.

[0186] In this embodiment, the first ultrasonic probe connection mechanism includes a first positioning groove 2121 and a second positioning groove 2122, which are respectively disposed on the inner sidewalls of the first enclosure member 2111 and the second enclosure member 2112.

[0187] The first ultrasonic probe positioning mechanism includes a first positioning protrusion 2211 and a second positioning protrusion 2212. Both the first positioning protrusion 2211 and the second positioning protrusion 2212 are used to be disposed on the first ultrasonic probe. The shape and position of the first positioning protrusion 2211 match the shape and position of the first positioning groove 2121, and the shape and position of the second positioning protrusion 2212 match the shape and position of the second positioning groove 2122.

[0188] In this embodiment, the shapes of the first positioning groove 2121 and the second positioning groove 2122 are not consistent, and / or

[0189] The positions of the first positioning groove 2121 and the second positioning groove 2122 are asymmetrical.

[0190] In this embodiment, the docking mechanism 213 of the second sensor fixing component 23 and the docking mechanism 231 of the second connecting component are composed of a second set of interlocking components.

[0191] In this embodiment, the first main body connection mechanism 211 is also provided with a backup docking mechanism 2114.

[0192] like Figures 15 to 19 As shown, in this embodiment, the fixing device further includes a second sensor positioning module 3, which includes:

[0193] The third connecting component 31 includes a second main connecting mechanism 311, a second ultrasonic probe connecting mechanism 312, and a third sensor fixing component docking mechanism 313. The second ultrasonic probe connecting mechanism 312 and the third sensor fixing component docking mechanism 313 are respectively disposed on the second main connecting mechanism 311.

[0194] The second ultrasonic probe positioning assembly includes a second ultrasonic probe positioning mechanism 321, which is disposed on the second main body connecting mechanism 311 and is used to position the second ultrasonic probe fixed on the second main body connecting mechanism 311.

[0195] The third sensor fixing assembly 33 includes a third connecting assembly 31 docking mechanism and a third sensor fixing part 332 that are connected to each other (in this embodiment, the two are integrally formed). The third connecting assembly docking mechanism and the third sensor fixing assembly docking mechanism 313 are detachably connected.

[0196] The head of the third sensor can be sealed with glue inside the cavity of the third sensor fixing part 332.

[0197] In this embodiment, the second main body connecting mechanism 311 includes a second ultrasonic probe receiving groove 3111;

[0198] The second ultrasonic probe connection mechanism 312 includes a first hook module 3121, which is disposed on the side of the second main body connection mechanism 311 where the second ultrasonic probe receiving groove 3111 is provided.

[0199] like Figure 18 As shown. The first claw module 3121 includes claws symmetrically distributed on both sides, which are located on both sides of the second ultrasonic probe receiving groove 3111.

[0200] The second ultrasonic probe positioning mechanism 321 is located at the edge of the second ultrasonic probe receiving groove 3111.

[0201] In this embodiment, the third sensor fixing component docking mechanism 313 includes a second hook module 3131, and the second hook module 3131 is provided with a positioning groove mechanism.

[0202] The third connecting component 31 has a positioning protrusion mechanism on its docking mechanism, and the shape and position of the positioning protrusion mechanism match the shape and position of the positioning groove mechanism.

[0203] The second claw module 3131 is also a claw module symmetrically distributed on both sides, and is located on the other side of the second main body connecting mechanism 311.

[0204] In this embodiment, the positioning groove mechanism includes a third positioning groove 31311 and a fourth positioning groove 31312. The third positioning groove 31311 and the fourth positioning groove 31312 are respectively disposed on two opposite surfaces in the second claw module 3131, and the third positioning groove 31311 and the fourth positioning groove 31312 are asymmetrical.

[0205] The positioning protrusion mechanism includes a third positioning protrusion 3311 and a fourth positioning protrusion 3312. Both the third positioning protrusion 3311 and the fourth positioning protrusion 3312 are used to be mounted on the second ultrasonic probe. The shape and position of the third positioning protrusion 3311 match the shape and position of the third positioning groove 31311, and the shape and position of the fourth positioning protrusion 3312 match the shape and position of the fourth positioning groove 31312. In use, the positioning protrusion and the positioning groove fit together in a mating manner, ensuring that the relative positions of the relevant components remain unchanged.

[0206] The intraoperative ultrasound probe fixing clip can be formed by the second sensor positioning module 3, which fixes the intraoperative ultrasound probe formed by the second ultrasound probe. First, the concave front end of the intraoperative ultrasound probe fixing clip covers the head of the intraoperative ultrasound probe, and then the tail is snapped in. The overall positioning is achieved by the covering and fitting of the contours of the two. The hooks prevent the intraoperative ultrasound probe from falling off by hooking the bottom beveled surface of the intraoperative ultrasound probe.

[0207] like Figure 15 The diagram shows the fixation of the intraoperative ultrasound probe sensor and the intraoperative ultrasound probe fixing clip. Simply snap the relevant clip heads into the sensor mounting slot. The asymmetrical protrusions on both sides of the third clip head can prevent misalignment during installation.

[0208] In practical applications, the puncture instrument positioning module 1, the first sensor positioning module 2, and the second sensor positioning module 3 can be used individually or in any combination without affecting each other. At the same time, using any one of the positioning modules can improve efficiency.

[0209] The fixation device used in the puncture surgery navigation and positioning system in this embodiment has a dedicated positioning module, which ensures that the relative position of the sensor and the corresponding medical device is always at the preset relative position each time they are connected. Thus, a single calibration can meet the needs of multiple uses without affecting the accuracy of surgical navigation. The overall operation is also more convenient, more stable, and more adaptable.

[0210] The second aspect:

[0211] This embodiment provides a puncture surgery navigation and positioning system, the system including a puncture instrument, a first sensor 5, and the fixation device for the puncture surgery navigation and positioning system described in the first aspect above;

[0212] The puncture component of the puncture instrument can be selectively inserted into the puncture instrument connection mechanism 111;

[0213] Furthermore, the puncture component can be selectively placed on the scale mechanism 121;

[0214] When the puncture component is inserted into the puncture instrument connecting mechanism 111, and the calibration ruler pushing mechanism 113 is in contact with the scale mechanism 121, the distance from the first connecting component to the end of the puncture component located on the scale mechanism 121 can be indicated by the scale mark 12111.

[0215] The first sensor 5 is connected to the first sensor fixing part 132.

[0216] In this embodiment, the system further includes a first ultrasonic probe 6 and a second sensor 7;

[0217] The first ultrasonic probe positioning mechanism in the fixing device is fixedly mounted on the first ultrasonic probe;

[0218] The first ultrasonic probe can be selectively nested within the first main body connecting mechanism 211 in the fixing device;

[0219] The second sensor 7 is connected to the second sensor fixing part in the fixing device.

[0220] The first ultrasound probe can be an abdominal ultrasound probe. With the design of having a first positioning protrusion and a second positioning protrusion distributed on the left and right sides of the abdominal ultrasound probe, and the two protrusions having different shapes, it can be ensured that the position of the ultrasound probe fixing clip of the first sensor positioning module 2 relative to the abdominal ultrasound probe remains unchanged during repeated disassembly and assembly. At the same time, by fastening the ultrasound probe sensor composed of the first sensor into the buckle base (i.e. the first ultrasound probe connection mechanism) of the second connecting component docking mechanism 231 composed of the first buckle head of the ultrasound probe fixing clip, it can be ensured that the relative position of the ultrasound probe sensor relative to the ultrasound probe fixing clip remains unchanged.

[0221] In this embodiment, the system further includes a second ultrasonic probe 8 and a third sensor 9;

[0222] The second ultrasonic probe 8 is nested and connected to the second ultrasonic probe connecting mechanism 312 in the fixing device;

[0223] The third sensor 9 is connected to the third sensor fixing part 332 in the fixing device.

[0224] The puncture surgery navigation and positioning system utilizing the aforementioned fixation device offers advantages such as greater ease of use, simpler operation, and higher stability. By employing the fixation device, the electromagnetic sensor maintains a consistent position on the ultrasound probe and puncture instrument each time, enabling pre-calibration of the instruments before shipment. This simplifies preoperative preparation, enhances the reliability of electromagnetic sensor fixation, and prevents intraoperative deviations from negatively impacting navigation accuracy.

[0225] It should be noted that the sensors and ultrasonic probes shown in the illustrations in this application are for illustrative purposes only, and their application is not limited to the content of the illustrations.

[0226] This utility model relates to a fixation device and corresponding system for use in a navigation and positioning system for puncture surgery.

[0227] By setting up the puncture instrument positioning module 1, the calibration ruler assembly 12 ensures that the relative position between the puncture instrument and the first sensor is at a preset position. At the same time, the first connecting assembly and the first sensor fixing assembly work together to ensure the convenience of docking the puncture instrument and the first sensor. Since the relative position is fixed, the complexity of repeatedly calibrating the puncture instrument can be avoided. At the same time, it can also meet the needs of different puncture lengths.

[0228] By setting up the first sensor positioning module 2, the connection speed between the first ultrasonic probe and the second sensor 7 can be accelerated. Since the first ultrasonic probe connection mechanism and the docking mechanism 213 of the second sensor fixing component 23 are both located on the first main body connection mechanism 211, their relative positions are fixed, thereby ensuring that the relative positions of the first ultrasonic probe and the second sensor 7 connected by the first sensor positioning module 2 are fixed. This avoids the complexity of repeatedly calibrating the first ultrasonic probe and improves the operating efficiency.

[0229] Similarly, by setting the second sensor positioning module 3, the connection speed between the second ultrasonic probe 8 and the third sensor 9 can be accelerated. Since the second ultrasonic probe connection mechanism 312 and the third sensor fixing component docking mechanism 313 are both located on the second main body connection mechanism 311, their relative positions are fixed, thereby ensuring that the relative positions of the second ultrasonic probe 8 and the third sensor connected by the second sensor positioning module 3 are fixed. This avoids the complexity of repeatedly calibrating the second ultrasonic probe 8 and improves the operating efficiency.

[0230] The fixing device and corresponding system for the navigation and positioning system of puncture surgery in this utility model can effectively solve the problem of unstable binding method of adhesive tape. At the same time, by designing a dedicated positioning module, the calibration time can be effectively reduced, the possibility of affecting the surgical process can be reduced, and the dedicated positioning module can effectively avoid the impact of adhesive tape binding method on navigation accuracy, making it easier to operate, more stable, and more adaptable.

[0231] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A fixation device for use in a navigation and positioning system for puncture surgery, characterized in that, The fixation device includes a puncture instrument positioning module, which includes: The first connecting component includes a puncture instrument connecting mechanism, a first sensor fixing component docking mechanism, and a calibration ruler pushing mechanism that are interconnected. A calibration ruler assembly includes a scale mechanism with scale markings, and a first connecting component selectively contacts the scale mechanism via the calibration ruler pushing mechanism. The first sensor fixing assembly includes a first connecting assembly docking mechanism and a first sensor fixing part that are connected to each other, wherein the first connecting assembly docking mechanism is connected to the first sensor fixing assembly docking mechanism.

2. The fixation device for a puncture surgery navigation and positioning system according to claim 1, characterized in that, The puncture instrument connection mechanism includes a base and a first locking screw. The base includes a first through hole and a second through hole. The first through hole is used for the puncture component in the puncture instrument to pass through. The second through hole extends through the side wall of the base to the first through hole. The first locking screw is threadedly connected to the second through hole, and the first locking screw can be rotated into the first through hole.

3. The fixation device for a puncture surgery navigation and positioning system according to claim 2, characterized in that, The first sensor fixing assembly docking mechanism is located on the side wall of the base, and the calibration ruler pushing mechanism is formed by the surface of any port of the first through hole in the base.

4. The fixation device for a puncture surgery navigation and positioning system according to claim 1, characterized in that, The first sensor fixing component docking mechanism and the first connecting component docking mechanism are composed of a first set of mating components, so that the first connecting component docking mechanism and the first sensor fixing component docking mechanism can be detachably connected.

5. The fixation device for a puncture surgery navigation and positioning system according to claim 1, characterized in that, The calibration ruler assembly also includes a positioning mechanism; The positioning mechanism is slidably mounted on the scale mechanism.

6. The fixation device for a puncture surgery navigation and positioning system according to claim 5, characterized in that, The scale mechanism includes a scale body, a puncture instrument guide, and a second locking screw. The scale markings are provided on the main body of the scale, and the side of the main body of the scale with the scale markings is provided with a puncture needle placement groove; The puncture instrument guide is connected to the scale body. The puncture instrument guide has a third through hole coaxially arranged with the puncture needle placement groove. The puncture instrument guide also has a fourth through hole. The fourth through hole is not coaxial with the third through hole and extends through the puncture instrument guide to the third through hole. The second locking screw is threadedly connected to the fourth through hole and can be rotated into the third through hole.

7. The fixation device for a puncture surgery navigation and positioning system according to claim 6, characterized in that, The positioning mechanism includes a slider component and a third locking screw; The slider component includes a slider body and a puncture instrument stop. The slider body is slidably fitted onto the scale mechanism. The puncture instrument stop extends from the slider body into the puncture needle placement groove. The slider body is also provided with a fifth through hole. The third locking screw is threadedly connected to the fifth through hole, and the third locking screw can be selectively rotated to the scale mechanism to achieve locking and unlocking between the slider component and the scale mechanism.

8. The fixation device for a puncture surgery navigation and positioning system according to claim 1, characterized in that, The fixing device further includes a first sensor positioning module, which includes: The second connecting component includes a first main body connecting mechanism, a first ultrasonic probe connecting mechanism, and a second sensor fixing component docking mechanism, wherein the first ultrasonic probe connecting mechanism and the second sensor fixing component docking mechanism are respectively disposed on the first main body connecting mechanism; The first ultrasonic probe positioning assembly includes a first ultrasonic probe positioning mechanism, wherein the first ultrasonic probe positioning mechanism is detachably connected to the first ultrasonic probe connection mechanism. The second sensor fixing assembly includes a second connecting component docking mechanism and a second sensor fixing part that are interconnected, wherein the second connecting component docking mechanism and the second sensor fixing assembly docking mechanism are detachably connected.

9. The fixation device for a puncture surgery navigation and positioning system according to claim 8, characterized in that, The first main body connection mechanism includes a first enclosing member, a second enclosing member, and a locking member; The first end of the first enclosing member is hinged to the first end of the second enclosing member, and the second end of the first enclosing member is selectively attached to the second end of the second enclosing member. The locking member is used to lock or unlock the second end of the first enclosing member and the second end of the second enclosing member. The first ultrasonic probe connection mechanism is located on the inner wall of the first enclosure member and / or the second enclosure member; The second sensor fixing assembly docking mechanism is located on the outer wall of the first enclosure member and / or the second enclosure member.

10. The fixation device for a puncture surgery navigation and positioning system according to claim 9, characterized in that, The first ultrasonic probe connection mechanism includes a first positioning groove and a second positioning groove, which are respectively disposed on the inner sidewalls of the first enclosure member and the second enclosure member; The first ultrasonic probe positioning mechanism includes a first positioning protrusion and a second positioning protrusion. Both the first positioning protrusion and the second positioning protrusion are used to be disposed on the first ultrasonic probe. The shape and position of the first positioning protrusion match the shape and position of the first positioning groove, and the shape and position of the second positioning protrusion match the shape and position of the second positioning groove.

11. The fixation device for a puncture surgery navigation and positioning system according to claim 9, characterized in that, The shapes of the first positioning groove and the second positioning groove are inconsistent, and / or The first positioning groove and the second positioning groove are located in asymmetrical positions.

12. The fixation device for a puncture surgery navigation and positioning system according to claim 8, characterized in that, The docking mechanism of the second sensor fixing component and the docking mechanism of the second connecting component are composed of a second set of mating components.

13. The fixation device for a puncture surgery navigation and positioning system according to claim 8, characterized in that, The first main connecting mechanism is also equipped with a backup docking mechanism.

14. The fixation device for a puncture surgery navigation and positioning system according to claim 1, characterized in that, The fixing device further includes a second sensor positioning module, which includes: The third connecting component includes a second main body connecting mechanism, a second ultrasonic probe connecting mechanism, and a third sensor fixing component docking mechanism, wherein the second ultrasonic probe connecting mechanism and the third sensor fixing component docking mechanism are respectively disposed on the second main body connecting mechanism; The second ultrasonic probe positioning assembly includes a second ultrasonic probe positioning mechanism, which is disposed on the second main body connecting mechanism and is used to position the second ultrasonic probe fixed on the second main body connecting mechanism. The third sensor fixing assembly includes a third connecting assembly docking mechanism and a third sensor fixing part that are interconnected, wherein the third connecting assembly docking mechanism and the third sensor fixing assembly docking mechanism are detachably connected.

15. The fixation device for a puncture surgery navigation and positioning system according to claim 14, characterized in that, The second main body connection mechanism includes a second ultrasonic probe receiving groove; The second ultrasonic probe connection mechanism includes a first hook module, which is located on the side of the second main body connection mechanism where the second ultrasonic probe receiving groove is provided; The second ultrasonic probe positioning mechanism is located at the edge of the second ultrasonic probe receiving groove.

16. The fixation device for a puncture surgery navigation and positioning system according to claim 14, characterized in that, The docking mechanism of the third sensor fixing component includes a second hook module, and the second hook module is provided with a positioning groove mechanism; The third connecting component docking mechanism is provided with a positioning protrusion mechanism, the shape and position of which match the shape and position of the positioning groove mechanism.

17. The fixation device for a puncture surgery navigation and positioning system according to claim 16, characterized in that, The positioning groove mechanism includes a third positioning groove and a fourth positioning groove. The third positioning groove and the fourth positioning groove are respectively provided on two opposite surfaces in the second claw module, and the third positioning groove and the fourth positioning groove are asymmetrical. The positioning bump mechanism includes a third positioning bump and a fourth positioning bump. Both the third positioning bump and the fourth positioning bump are used to be mounted on the second ultrasonic probe. The shape and position of the third positioning bump match the shape and position of the third positioning groove, and the shape and position of the fourth positioning bump match the shape and position of the fourth positioning groove.

18. A navigation and positioning system for puncture surgery, characterized in that, The system includes a puncture instrument, a first sensor, and a fixation device for a puncture surgery navigation and positioning system as described in any one of claims 1 to 17; The puncture component of the puncture instrument can be selectively inserted into the puncture instrument connection mechanism; Furthermore, the puncture component can be selectively placed on the scale mechanism; When the puncture component is inserted into the puncture instrument connecting mechanism, and the calibration ruler pushing mechanism is in contact with the scale mechanism, the distance from the first connecting component to the end of the puncture component located on the scale mechanism can be indicated by the scale markings. The first sensor is connected to the first sensor fixing part.

19. The puncture surgery navigation and positioning system according to claim 18, characterized in that, The system also includes a first ultrasonic probe and a second sensor; The first ultrasonic probe positioning mechanism in the fixing device is fixedly mounted on the first ultrasonic probe; The first ultrasonic probe can be selectively nested within the first main body connecting mechanism of the fixing device; The second sensor is connected to the second sensor fixing part in the fixing device.

20. The puncture surgery navigation and positioning system according to claim 18, characterized in that, The system also includes a second ultrasonic probe and a third sensor; The second ultrasonic probe is nested and connected to the second ultrasonic probe connection mechanism in the fixing device; The third sensor is connected to the third sensor fixing part in the fixing device.

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