Protective tube tooling for intraoperative ultrasonic probe

Abstract

Disclosed in the present invention is a protective tube tooling for an intraoperative ultrasonic probe, comprising: a protective long tube, wherein a first mounting channel is provided in the protective long tube and configured for mounting an intraoperative ultrasonic probe, a first sensor protective tube is fixed in the protective long tube, and a first sliding channel is provided in the first sensor protective tube and configured to accommodate a sensor wire harness; and a handle fixing assembly, wherein a second mounting channel is provided in the handle fixing assembly, the handle fixing assembly is fixed at a tail end of the protective long tube, and the second mounting channel is in communication with the first mounting channel and configured for allowing a front end of the intraoperative ultrasonic probe to pass through and for accommodating and fixing a probe handle end of the intraoperative ultrasonic probe. According to the present invention, a mounting channel for the intraoperative ultrasonic probe is provided by means of the protective long tube and the handle fixing assembly, and a mounting channel for the electromagnetic navigation sensor is provided by means of the first sensor protective tube, thereby facilitating the mounting and combination of the intraoperative ultrasonic probe and the electromagnetic navigation sensor.

Description

Protective tubing fixture for intraoperative ultrasound probes Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a protective tube tooling for an intraoperative ultrasound probe. Background Technology

[0002] Intraoperative ultrasound probes are used to acquire ultrasound images of human tissues during interventional puncture procedures. In related technologies, to achieve precise surgical operations, ultrasound probes are often combined with navigation devices. The navigation device can locate the spatial position of the ultrasound probe, and then determine the position of the puncture needle in the ultrasound image based on the spatial position of the puncture needle. This helps doctors to accurately perform surgical operations with the help of ultrasound images.

[0003] In related technologies, navigation devices, such as navigation sensors, need to be installed on ultrasonic probes as separate components for use. However, the lack of specific installation fixtures makes the integration of navigation devices and ultrasonic probes inconvenient. Summary of the Invention

[0004] The main objective of this invention is to provide a protective tube fixture for intraoperative ultrasound probes, so as to solve the problem of inconvenient installation and integration of navigation equipment and intraoperative ultrasound probes in related technologies.

[0005] To achieve the above objectives, the present invention provides a protective tube fixture for an intraoperative ultrasound probe, comprising:

[0006] A protective tube is provided, and a first installation channel is provided inside the protective tube. The first installation channel is used to install an intraoperative ultrasound probe. A first sensor protection tube is fixed inside the protective tube. A first sliding channel is established inside the first sensor protection tube. The first sliding channel accommodates the sensor wire harness.

[0007] A handle fixing assembly is provided with a second mounting channel. The handle fixing assembly is fixed to the end of the protective tube. The second mounting channel is connected to the first mounting channel. The second mounting channel is used for the front end of the intraoperative ultrasound probe to pass through and accommodate the probe handle end of the intraoperative ultrasound probe.

[0008] Furthermore, the handle fixing assembly is provided with a sliding groove, and a slider is provided in the sliding groove. The sliding groove is connected to the first sliding channel, and the slider is used to fix the sensor wiring harness.

[0009] Furthermore, the handle fixing assembly is provided with a second sliding channel, the two ends of which are respectively connected to the first sliding channel and the slide groove.

[0010] Furthermore, the handle fixing assembly is provided with a snap-fit ​​cover, which snaps and fixes itself to the slide groove.

[0011] Furthermore, the handle fixing assembly includes a connector, a first clamping fixing member, and a second clamping fixing member;

[0012] The connector is fixedly sleeved at the end of the protective tube. The first clamping and fixing member and the second clamping and fixing member are distributed opposite to each other. The first clamping and fixing member and the second clamping and fixing member are used to clamp and fix the probe handle end of the ultrasound probe during the operation.

[0013] The groove is provided on the first clamping and fixing member or the second clamping and fixing member.

[0014] Furthermore, the inner surface contours of the first clamping fixation member and the second clamping fixation member have a surface contour that matches the probe handle end of the intraoperative ultrasound probe.

[0015] Furthermore, the first clamping and fixing member includes a fixed section and a movable section. The fixed section is configured as a gripping section. The first end of the fixed section is fixedly connected to the upper side of the connector, and the second end of the fixed section is hinged to the first end of the movable section.

[0016] The first end of the second clamping and fixing member is hinged to the lower side of the connecting member;

[0017] The second end of the movable segment and the second end of the second clamping and fixing member are detachably and fixedly connected by a locking member;

[0018] The slide groove is provided on the movable section, and the second sliding channel includes a first sliding section, a second sliding section and a third sliding section. The first sliding section is located on the connector, the second sliding section is located on the fixed section, and the third sliding section is located on the movable section.

[0019] Furthermore, the end of the first sensor protection tube extends from the first sliding section and the second sliding section to the third sliding section;

[0020] When the active segment is at its maximum external rotation angle, the opening and closing angle between the second sliding segment and the third sliding segment is less than 20°.

[0021] Furthermore, the locking component includes a first latch and a second latch, the first latch being fixed to the second end of the movable segment, and the second latch being fixed to the second end of the second clamping and fixing component, the first latch and the second latch being connected.

[0022] Furthermore, the first buckle has buckle grooves on both sides, and the second buckle includes a base, a torsion spring and a buckle bar. The buckle bar is configured as two and is hinged to both sides of the base by a pivot. The torsion spring is sleeved on the pivot. The first end of the buckle bar is provided with a buckling protrusion, and the second end of the buckle bar is provided with a push handle. The buckle groove and the buckling protrusion are buckled together.

[0023] Furthermore, a winding spring is also provided on the first clamping and fixing member. The winding spring is located at the rear end of the slider, the front end of the winding spring is fixedly connected to the slider, and the rear end of the winding spring is fixed on the handle fixing assembly. The winding spring is used for winding the sensor wire harness.

[0024] The handle fixing assembly is provided with a fixing part, which is located at the rear end of the winding spring and is used to fix the sensor wire harness.

[0025] The maximum tension of the winding spring is greater than the maximum sliding stroke of the slider within the groove.

[0026] Furthermore, the winding spring is disposed in the slide groove, and the fixing part is a fixing slot opened at the rear end of the slide groove. A fixing plate is detachably fixed on the fixing slot, and the fixing plate is used to press the sensor wire harness into the fixing slot.

[0027] Furthermore, the handle fixing assembly is also provided with a fixing seat, which is located in front of the fixing slot, and the rear end of the winding spring is fixedly connected to the fixing seat;

[0028] The mounting base has a wire passage groove for the sensor wire harness to pass through.

[0029] Furthermore, the protective tube fixture also includes a second sensor protective tube, which is slidably inserted into the first sliding channel. A third mounting channel is provided inside the second sensor protective tube, and the third mounting channel is used to install the electromagnetic navigation sensor.

[0030] Furthermore, the slider is provided with a mounting groove that extends through the slider along the sliding direction of the slider, and the mounting groove is used to fix the sensor wiring harness.

[0031] Furthermore, the mounting slot includes a first slot and a second slot arranged sequentially from front to back. The width of the first slot is greater than the width of the second slot. The first slot is used to accommodate the second sensor protection tube, and the second slot is used to accommodate the sensor wiring harness.

[0032] Furthermore, the front end of the first sensor protection tube extends beyond the front end of the protection tube to form an extension section, and at least a portion of the extension section is provided with a transition section formed by cutting the extension section along a spiral line.

[0033] Furthermore, the protective tube fixture also includes a film-coated bracket, which is sleeved and fixed to the front end of the protective long tube, and the first sensor protective tube passes through the film-coated bracket.

[0034] Furthermore, the film-coated support includes a large-diameter section and a small-diameter section, wherein the large-diameter section is sleeved and fixed to the front end of the protective long tube;

[0035] The front end of the extension segment extends out of the small diameter segment.

[0036] Furthermore, both the protective tube and the first sensor protective tube can be nickel-titanium protective tubes, or the protective tube can be a stainless steel protective tube. In this embodiment, a protective tube is provided, with a first mounting channel inside for mounting the intraoperative ultrasound probe. The first sensor protective tube is fixed inside the protective tube, and a first sliding channel is established inside the first sensor protective tube to accommodate the sensor wiring harness. A handle fixing assembly is also provided, with a second mounting channel inside. The handle fixing assembly is fixed to the end of the protective tube, and the second mounting channel communicates with the first mounting channel. The second mounting channel is used for the front end of the intraoperative ultrasound probe to pass through and accommodate the probe handle end of the intraoperative ultrasound probe. When installing the intraoperative ultrasound probe and the electromagnetic navigation sensor, the front end of the intraoperative ultrasound probe can be inserted through the second mounting channel of the handle fixing assembly and then exit through the first mounting channel of the protective tube. The probe handle end of the intraoperative ultrasound probe is fixed inside the handle fixing assembly, the sensor wiring harness is passed through the first sliding channel, and the electromagnetic navigation sensor is located in front of the first sliding channel and fixed to the front end of the intraoperative ultrasound probe. On the one hand, the present invention establishes an installation channel for the intraoperative ultrasound probe by using a protective tube and a handle fixing assembly, and establishes an installation channel for the electromagnetic navigation sensor by using a first sensor protection tube, thereby facilitating the installation and combination of the intraoperative ultrasound probe and the electromagnetic navigation sensor, and thus solving the problem of inconvenient installation and combination of navigation equipment and intraoperative ultrasound probe in related technologies.

[0037] On the other hand, the long protective tube installed after the procedure can protect the ultrasound probe during surgery, while the first sensor protective tube can also protect the sensor wiring harness, thus preventing damage during use and improving safety. Attached Figure Description

[0038] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention, making other features, objects, and advantages of the invention more apparent. The illustrative embodiments of the invention illustrated in the drawings and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0039] Figure 1 is a schematic diagram of the protective tube tooling according to an embodiment of the present invention;

[0040] Figure 2 is a schematic diagram of a partial structure in Figure 1;

[0041] Figure 3 is a schematic diagram of the structure after the intraoperative ultrasound probe is installed according to an embodiment of the present invention;

[0042] Figure 4 is a structural schematic diagram of the handle fixing assembly according to an embodiment of the present invention;

[0043] Figure 5 is a partial enlarged structural diagram of Figure 4;

[0044] Figure 6 is a structural schematic diagram of the handle fixing assembly from another perspective according to an embodiment of the present invention;

[0045] Figure 7 is a schematic diagram of the structure of the film-coated bracket after installation according to an embodiment of the present invention;

[0046] Figure 8 is a schematic diagram of the structure after the second sensor protection tube is installed according to an embodiment of the present invention;

[0047] Figure 9 is a structural schematic diagram of the locking member according to an embodiment of the present invention;

[0048] Figure 10 is a rear view schematic diagram of the protective tube tooling according to an embodiment of the present invention;

[0049] Figure 11 is a schematic diagram of the assembled intraoperative ultrasound probe according to an embodiment of the present invention;

[0050] Among them, 1 is a protective tube, 100 is the first mounting channel, 2 is the first sensor protection tube, 200 is the first sliding channel, 3 is the handle fixing assembly, 31 is the connector, 32 is the first clamping fixing component, 320 is the fixed section, 321 is the movable section, 33 is the second clamping fixing component, 34 is the sliding groove, 35 is the slider, 350 is the mounting groove, 3500 is the first groove, 3501 is the second groove, 36 is the second sliding channel, 361 is the first sliding section, 362 is the second sliding section, 363 is the third sliding section, 37 is the snap-on cover, 38 is the second mounting channel, 4 is the intraoperative ultrasound probe, 40 is the probe handle end, 6 is the locking component, 60 is the first buckle, 61 is the second buckle, 610 is the locking strip, 611 is the base, 612 is the push handle, 7 is the winding spring, 8 is the fixing seat, 80 is the wire passage groove, 81 is the guide post, 9 is the film support, 90 is the large diameter section, 91 is the small diameter section, 10 is the second sensor protection tube, 11 is the probe buckle, and 12 is the clamping component. Detailed Implementation

[0051] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0052] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the invention described herein.

[0053] In this invention, the terms "upper," "lower," "inner," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0054] Furthermore, some of the aforementioned terms, besides indicating direction or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0055] Furthermore, the terms "set up," "equipped with," "connected," and "fixed" should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In addition, the term "multiple" should mean two or more.

[0057] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0058] To address related technical issues, as shown in Figures 1 to 3, this embodiment of the invention provides a protective tube fixture for an intraoperative ultrasound probe 4, comprising:

[0059] The protective tube 1 has a first installation channel 100 inside it, which is used to install the intraoperative ultrasound probe 4. The protective tube 1 has a first sensor protection tube 2 fixed inside it, and a first sliding channel 200 is established inside the first sensor protection tube 2 to accommodate the sensor wire harness.

[0060] The handle fixing component 3 has a second installation channel 38 inside. The handle fixing component 3 is fixed to the end of the protective long tube 1. The second installation channel 38 is connected to the first installation channel 100. The second installation channel 38 is used for the front end of the intraoperative ultrasound probe 4 to pass through and accommodate the probe handle end 40 of the intraoperative ultrasound probe 4.

[0061] In this embodiment, the protective tube fixture is mainly used to install the intraoperative ultrasound probe 4 and the electromagnetic navigation sensor together. The intraoperative ultrasound probe 4 includes a probe handle end 40, a long strip-shaped insertion tube, and an ultrasonic wave emitting part located at the front end of the insertion tube. The electromagnetic navigation sensor needs to be installed on the back of the ultrasonic wave emitting part. The electromagnetic navigation sensor and the ultrasonic wave emitting part can be connected by specific snap-fit ​​components or adhesives, etc., and this embodiment does not impose any limitations on this.

[0062] As shown in Figure 11, in one embodiment, the electromagnetic navigation sensor and the ultrasonic transmitter can be connected via a specific snap-fit ​​assembly. The snap-fit ​​assembly includes a probe snap-fit ​​11, a slot, and a clamping member 12. The probe snap-fit ​​11 can be sleeved onto the ultrasonic transmitter, and has an opening to avoid the emission window of the ultrasonic transmitter. The slot is installed inside the probe snap-fit ​​11, and the electromagnetic navigation sensor is installed on the slot, fitting against the outside of the ultrasonic transmitter under the action of the probe snap-fit ​​11. The clamping member 12 can be sleeved onto the rear end of the probe snap-fit ​​11 to hold the probe snap-fit ​​11 tightly onto the ultrasonic transmitter. It should be noted that the structural description of the snap-fit ​​assembly in this embodiment is not restrictive, and those skilled in the art can use snap-fit ​​assemblies with other structures.

[0063] Since the electromagnetic navigation sensor requires a wiring harness for use, the arrangement of the sensor wiring harness also needs to be considered. As shown in Figure 1, in this embodiment, the protective tube fixture mainly includes a protective long tube 1, a first sensor protective tube 2, and a handle fixing assembly 3. The protective long tube 1 is a long, narrow tubular structure with a hollow cavity to form a first installation channel 100, which is used for the insertion of the intraoperative ultrasound probe 4. The handle fixing assembly 3 is fixed to the rear end of the protective long tube 1, and has a second installation channel 38 communicating with the first installation channel 100. During installation, as shown in Figure 2, the insertion tube of the intraoperative ultrasound probe 4 is inserted through the second installation channel 38 and, after passing through the first installation channel 100, the ultrasonic wave emitting part at the front end of the insertion tube exits through the front end of the first installation channel 100. At this time, the probe handle end 40 of the intraoperative ultrasound probe 4 is located within the second installation channel 38 of the handle fixing assembly 3, and the probe handle end 40 of the intraoperative ultrasound probe 4 is fixed by the handle fixing assembly 3. One method of fixing is by using clips or screws, etc., and this embodiment does not limit the specific method used.

[0064] After the ultrasound probe 4 is installed into the protective tube fixture during the operation, the electromagnetic navigation sensor also needs to be installed into the protective tube fixture. As shown in Figure 1, in this embodiment, a first sensor protective tube 2 is set inside the protective long tube 1. The first sensor protective tube 2 is a long strip-shaped tubular structure with a hollow cavity to form a first sliding channel 200. The two ends of the first sliding channel 200 are open structures. The sensor harness of the electromagnetic navigation sensor can pass through from the rear end of the first sliding channel 200 and extend to the front end of the first sliding channel 200. The sensor harness is at least partially located inside the first sliding channel 200.

[0065] On the one hand, the present invention establishes an installation channel for the intraoperative ultrasound probe 4 through the protective long tube 1 and the handle fixing assembly 3, and establishes an installation channel for the electromagnetic navigation sensor through the first sensor protection tube 2, thereby facilitating the installation and combination of the intraoperative ultrasound probe 4 and the electromagnetic navigation sensor, and thus solving the problem of inconvenient installation and combination of navigation equipment and intraoperative ultrasound probe 4 in related technologies.

[0066] On the other hand, after installation, the protective tube 1 can protect the ultrasound probe 4 during the operation, and the first sensor protection tube 2 can also protect the sensor harness, which can prevent damage during use and improve the safety of use.

[0067] In one embodiment of the intraoperative ultrasound probe 4, the ultrasonic transmitter can be bent relative to the insertion tube, the bending process being controlled by a wrench on the probe handle end 40. Since the electromagnetic navigation sensor is fixed to the ultrasonic transmitter, it also moves with the ultrasonic transmitter; therefore, the sensor harness connected to the electromagnetic navigation sensor needs to be able to slide within the first sliding channel 200.

[0068] Therefore, as shown in Figures 1 and 4, in this embodiment, a sliding groove 34 is provided on the handle fixing component 3, and a slider 35 is provided in the sliding groove 34. The sliding groove 34 is connected to the first sliding channel 200, and the slider 35 is used to fix the sensor wire harness.

[0069] Specifically, in this embodiment, the electromagnetic navigation sensor enters from the rear end of the first sliding channel 200, and the sensor harness passes through the first sliding channel 200. After the electromagnetic navigation sensor is installed in the set position (i.e., the length extending out of the first sliding channel 200 meets the design value), the sensor harness is inserted into the slide groove 34 and fixed to the slider 35. The end of the sensor harness extends rearward to connect with the device. During the movement of the electromagnetic navigation sensor with the ultrasonic transmitter, the sensor harness drives the slider 35 to slide within the slide groove 34. The slider 35 and the slide groove 34 cooperate to constrain the sensor harness while providing support for the movement of the electromagnetic navigation sensor. Furthermore, in this embodiment, after the sensor harness is placed inside the handle fixing assembly 3 of the fixture, the entire sensor harness is hidden within the fixture. This fixture protects the sensor harness and prevents damage during use. In this invention, the sensor harness may only include the harness connected to the electromagnetic navigation sensor, or it may include the harness connected to the electromagnetic navigation sensor and a protective sleeve or tube fitted over the harness.

[0070] The handle fixing assembly 3 is used by the doctor to hold and operate the intraoperative ultrasound probe 4, and therefore has a length and shape that meet the operational requirements. Since the movement of the electromagnetic navigation sensor is only the bending and deformation movement of the ultrasound transmitter relative to the intraoperative ultrasound probe within a certain angle, the sliding stroke of the follower slider 35 within the slide groove 34 is short, meaning the length of the slide groove 34 does not need to be excessively long. Based on this, to ensure the sliding of the sensor harness relative to the handle fixing assembly 3, as shown in Figure 6, a second sliding channel 36 is provided on the handle fixing assembly 3 in this embodiment. The two ends of the second sliding channel 36 are respectively connected to the first sliding channel 200 and the slide groove 34.

[0071] In other words, in this embodiment, two channels are provided on the handle fixing assembly 3. One channel is the second sliding channel 36, and the other channel is the slide groove 34. The second sliding channel 36 only needs to accommodate the sensor harness and slide in cooperation with it, while the slide groove 34 needs to provide a sliding track for the slider 35. As shown in Figure 6, in this embodiment, the slide groove 34 can be formed near the end of the handle fixing assembly 3.

[0072] After the second sliding channel 36 is set, the electromagnetic navigation sensor needs to be inserted from the rear end of the second sliding channel 36 during installation, and then pass through the first sliding channel 200 and exit from the front end of the first sliding channel 200. The sensor wiring harness is similarly arranged on the slide groove 34 and the slider 35.

[0073] Based on the provided slide groove 34, as shown in Figure 9, in order to better protect the sensor wiring harness, slide groove 34 and slider 35, a snap-fit ​​cover 37 is provided on the handle fixing assembly 3 in this embodiment. The snap-fit ​​cover 37 is snapped and fixed on the slide groove 34.

[0074] Specifically, in this embodiment, the snap-fit ​​cover 37 is snapped and fixed to the handle fixing assembly 3. The snap-fit ​​cover 37 can cover the slide groove 34, thereby providing protection. The snap-fit ​​cover 37 can be configured as a flip-top structure, with one side hinged to the handle fixing assembly 3 and the other side snapped or fixed to the handle fixing assembly 3. Of course, the snap-fit ​​cover 37 can also be configured as a separate cover structure, with a snap-fit ​​at the edge of the snap-fit ​​cover 37, which is snapped and connected to the handle fixing assembly 3.

[0075] The handle fixing assembly 3 serves as a structure for fixing the probe handle end 40 of the intraoperative ultrasound probe 4, as shown in Figures 1 and 2. In one embodiment, the handle fixing assembly 3 achieves fixation by gripping the probe handle end 40 of the intraoperative ultrasound probe 4. In this embodiment, the handle fixing assembly 3 includes a connector 31, a first clamping fixing member 32, and a second clamping fixing member 33.

[0076] The connector 31 is fixedly sleeved at the end of the protective tube 1. The first clamping and fixing member 32 and the second clamping and fixing member 33 are distributed opposite to each other. The first clamping and fixing member 32 and the second clamping and fixing member 33 are used to clamp and fix the probe handle end 40 of the ultrasound probe 4 during the operation.

[0077] The slide groove 34 is provided on the first clamping and fixing member 32 or the second clamping and fixing member 33.

[0078] Specifically, the handle fixing assembly 3 includes a first clamping fixing member 32 and a second clamping fixing member 33 distributed relatively to each other, and a connector 31 that can be fixed to the rear end of the protective tube 1. The connector 31 can be a ring-shaped structure that is sleeved and fixed to the rear end of the protective tube 1, or it can be at least two connecting blocks fixed to the rear end of the protective tube 1. A second installation channel 38 is formed between the first clamping fixing member 32 and the second clamping fixing member 33. When installing the intraoperative ultrasound probe 4, the first clamping fixing member 32 and the second clamping fixing member 33 are first separated by a distance to make room for installation. After the intraoperative ultrasound probe 4 is installed in place, the first clamping fixing member 32 and the second clamping fixing member 33 are adjusted to hold the probe handle end 40 of the intraoperative ultrasound probe 4 tightly.

[0079] In one embodiment of the first clamping fastener 32 and the second clamping fastener 33, the first clamping fastener 32 and the second clamping fastener 33 can be hinged to the connecting member 31, thereby enabling them to be opened or closed in a rotating manner. In another embodiment, the first clamping fastener 32 and the second clamping fastener 33 can be slidably connected to the connecting member 31 in a radial direction, thereby enabling them to be opened or closed in a linear sliding manner.

[0080] In this embodiment, the slide groove 34 for supporting the sliding of the sensor harness can be selectively arranged on the first clamping fastener 32 or the second clamping fastener 33; this embodiment does not impose any restrictions on it. Furthermore, to improve the gripping tightness of the two clamping fasteners on the probe handle end 40 of the intraoperative ultrasound probe 4, the inner surface contours of the first clamping fastener 32 and the second clamping fastener 33 in this embodiment match the surface contour of the probe handle end 40 of the intraoperative ultrasound probe 4.

[0081] In terms of distribution, the first clamping fixing member 32 can be located above the second clamping fixing member 33, so that the first clamping fixing member 32 contacts the doctor's palm when gripping. Since both the first clamping fixing member 32 and the second clamping fixing member 33 are movably connected to the connecting member 31, the connection structure set at the connection position will obviously affect the doctor's grip. Therefore, as shown in Figure 1, in this embodiment, the first clamping fixing member 32 is divided into two segments, specifically, according to the doctor's gripping area, they are divided into a fixed segment 320 and a movable segment 321. The first end of the fixed segment 320 is fixedly connected to the upper side of the connecting member 31 (when the connecting member 31 is a ring structure, the upper side here refers to the upper area of ​​the end face of the connecting member 31), and the rear end is movably connected to the movable segment 321. After the fixed segment 320 and the connecting member 31 are fixedly connected, they can be integrally formed or welded at the end face, so that the connection position of the fixed segment 320 and the connecting member 31 is relatively smooth, thus facilitating operation when the fixed segment 320 is used as the doctor's gripping segment.

[0082] Additionally, it should be noted that the length selection of the fixing section 320 depends not only on the doctor's grip area but also on the structure of the probe handle end 40 of the intraoperative ultrasound probe 4. In one embodiment, the probe handle end 40 of the intraoperative ultrasound probe 4 has a protrusion in the middle. Since the fixing section 320 is a fixed structure, considering the installation of the probe handle end 40, the rear end of the fixing section 320 cannot exceed the apex of the protrusion on the probe handle end 40. When the probe handle end 40 of the intraoperative ultrasound probe 4 has other structures, the fixing section 320 also needs to be adjusted according to the structural characteristics of the probe handle end 40, which will not be elaborated here in this embodiment.

[0083] In this embodiment, to make the entire structure more compact and to facilitate clamping and fixing the probe handle end 40 of the intraoperative ultrasound probe 4, a rotational motion is adopted. Specifically, as shown in Figure 1, in this embodiment, the second end of the fixed section 320 is hinged to the first end of the movable section 321; the first end of the second clamping and fixing member 33 is hinged to the lower side of the connecting member 31 (when the connecting member 31 is a ring structure, the lower side here refers to the lower area of ​​the end face of the connecting member 31).

[0084] During installation, the movable section 321 can be rotated upwards and the second clamping fastener 33 can be rotated downwards to make room for the installation of the intraoperative ultrasound probe 4. After installation, the movable section 321 is rotated downwards to fit against the upper area of ​​the probe handle end 40 of the intraoperative ultrasound probe 4, and the second clamping fastener 33 is rotated upwards to fit against the lower area of ​​the probe handle end 40. As shown in Figure 4, to facilitate gripping the probe handle end 40, in this embodiment, the second end of the movable section 321 and the second end of the second clamping fastener 33 are detachably fixedly connected by a locking member 6. In this embodiment, the locking member 6 serves to connect the second ends of the movable section 321 and the second clamping fastener 33. In one embodiment, the locking member 6 can be a pin, a locking screw, or a snap-fit ​​structure, etc., and this embodiment does not limit its use.

[0085] After the first clamping and fixing member 32 is divided into a fixed section 320 and a movable section 321, the slide groove 34 is provided on the movable section 321. In addition, as shown in FIG6, the second sliding channel 36 formed on the first clamping and fixing member 32 includes a first sliding section 361, a second sliding section 362 and a third sliding section 363. The first sliding section 361 is located on the connecting member 31, the second sliding section 362 is located on the fixed section 320, and the third sliding section 363 is located on the movable section 321.

[0086] In this embodiment, the front of the movable segment 321 has a third sliding segment 363, and the rear of the movable segment 321 has a groove 34, which communicates with the third sliding segment 363. The end of the first sensor protection tube 2 extends from the first sliding segment 361 and the second sliding segment 362 to the third sliding segment 363. The end of the first sensor protection tube 2 may selectively extend into the groove 34 or not. Since the end of the first sensor protection tube 2 extends into the movable segment 321 via the fixed segment 320, and the movable segment 321 needs to rotate relative to the fixed segment 320 to open when installing the intraoperative ultrasound probe 4, the maximum rotation angle of the movable segment 321 needs to be limited to avoid bending and damage to the first sensor protection tube 2 due to excessive rotation angle. In one embodiment, when the movable segment 321 is at its maximum outward rotation angle, the opening angle between the second sliding segment 362 and the third sliding segment 363 is less than 20°.

[0087] In one embodiment that limits the rotation angle, a limiting stop is provided on the fixed segment 320. The limiting stop is located in the rotation direction of the movable segment 321. When the movable segment 321 rotates upward to contact the limiting stop, the movable segment 321 cannot rotate further, thereby limiting the maximum rotation angle of the movable segment 321. In another embodiment, the rotation angle can be limited by adjusting the hinged portion of the movable segment 321 and the fixed segment 320; this will not be elaborated upon in this embodiment.

[0088] As shown in Figures 9 and 10, in order to lock the first clamping fastener 32 and the second clamping fastener 33, the locking member 6 in this embodiment includes a first buckle 60 and a second buckle 61. The first buckle 60 is fixed to the second end of the movable section 321, and the second buckle 61 is fixed to the second end of the second clamping fastener 33. The first buckle 60 and the second buckle 61 are connected by a snap-fit ​​connection.

[0089] Specifically, in this embodiment, after the first clamping fastener 32 and the second clamping fastener 33 are rotated and tightly gripped on the probe handle end 40 of the intraoperative ultrasound probe 4, the first latch 60 and the second latch 61 can be operated to engage and lock the first clamping fastener 32 and the second clamping fastener 33. In one embodiment of the first latch 60 and the second latch 61, at least one of the first latch 60 and the second latch 61 is configured to be elastic, and can automatically engage during the pressing process due to its own elasticity.

[0090] Specifically, the first buckle 60 has buckle grooves on both sides, and the second buckle 61 includes a base 611, a torsion spring and a buckle bar 610. There are two buckle bars 610, which are hinged to both sides of the base 611 by a pivot. The torsion spring is sleeved on the pivot. The first end of the buckle bar 610 is provided with a buckling protrusion, and the second end of the buckle bar 610 is provided with a push handle 612. The buckle groove and the buckling protrusion are buckled together.

[0091] In this embodiment, during the engagement of the first clamping fastener 32 and the second clamping fastener 33, the lower end of the first buckle 60 abuts against the upper end of the locking strip 610. As the first clamping fastener 32 and the second clamping fastener 33 further engage, the first buckle 60 pushes the locking strip 610 to rotate outward and compresses the torsion spring. When the buckle groove on the first buckle 60 corresponds to the locking protrusion on the locking strip 610, the first clamping fastener 32 and the second clamping fastener 33 grip the probe handle end 40 of the intraoperative ultrasound probe 4. At the same time, the locking strip 610 rotates inward under the elastic force of the torsion spring, causing the buckle groove and the locking protrusion to engage, thereby completing the locking.

[0092] When disassembly is required, the locking strip 610 can be rotated to disengage the locking protrusion from the locking groove. To facilitate the first latch 60 pushing the locking strip 610 to rotate during the locking process, in this embodiment, the lower end of the first latch 60, the surface that contacts the locking strip 610, is set as an inclined surface, and the upper end of the locking strip 610, the surface that contacts the first latch 60, is also set as an inclined surface. The force is transmitted through the cooperation of the two inclined surfaces.

[0093] As shown in Figure 10, to facilitate the rotation of the retaining strip 610 during disassembly, a push handle 612 is provided at the lower end of the retaining strip 610 in this embodiment. The push handle 612 is perpendicular to the end face of the retaining strip 610. In one embodiment, to facilitate the installation of the retaining strip 610 and the torsion spring, the base 611 is configured as a U-shaped seat with an arc-shaped groove inside. The two retaining strips 610 are arc-shaped and installed in the arc-shaped groove through a rotating shaft. The torsion spring is sleeved on the rotating shaft and located in the arc-shaped groove. The retaining strip 610 rotates within a certain angle range within the arc-shaped groove.

[0094] After the sensor harness is fixedly connected to the slider 35, it needs to pass through the through hole at the rear end of the first clamping fixture 32. During the bending of the ultrasonic wave emitting part of the ultrasonic probe 4 during the operation, the electromagnetic navigation sensor moves synchronously, causing the sensor harness to drive the slider 35 to slide within the groove 34 and pull the rear end of the sensor harness to move. Since the harness located at the rear end of the first clamping fixture 32 is prone to bending during use, it is easily damaged during the pulling process. Therefore, to avoid damage, the sensor harness can be provided with a certain amount of slack within the groove 34. During the movement of the electromagnetic navigation sensor, only the sensor harness within the groove 34 moves, while the harness located at the rear end of the first clamping fixture 32 remains stationary.

[0095] To achieve this purpose, as shown in Figures 4 to 6, the first clamping and fixing member 32 in this embodiment is also provided with a winding spring 7. The winding spring 7 is located at the rear end of the slider 35, the front end of the winding spring 7 is fixedly connected to the slider 35, and the rear end of the winding spring 7 is fixed on the handle fixing assembly 3. The winding spring 7 is used for winding the sensor wire harness.

[0096] The handle fixing assembly 3 is provided with a fixing part, which is located at the rear end of the winding spring 7 and is used to fix the sensor wire harness.

[0097] The maximum extension of the wound spring 7 is greater than the maximum sliding stroke of the slider 35 in the groove 34.

[0098] Specifically, the winding spring 7 is a spring. After passing through the slider 35, the sensor wire harness can be wound around the winding spring 7 in the spiral direction. After winding, the sensor wire harness passes through the first clamping and fixing member 32 and is pressed and fixed to the first clamping and fixing member 32 by a pressure plate or other structure. The front end of the winding spring 7 is fixedly connected to the slider 35, and the rear end is fixed to the first clamping and fixing member 32. The winding spring 7 will be stretched when the slider 35 moves linearly in the slide groove 34.

[0099] First, when the ultrasonic transmitter at the front end bends, the slider 35 slides within the groove 34 in conjunction with the ultrasonic transmitter. Simultaneously, the slider 35 pulls the coil spring 7 to deform and gain elastic potential energy. When the ultrasonic transmitter returns to its original position, the coil spring 7 can pull the slider 35 back to its original position. Second, since the sensor wiring harness is wound on the coil spring 7, when the coil spring 7 is stretched, the sensor wiring harness wound on the coil spring 7 deforms accordingly. Since the maximum stretch of the coil spring 7 is greater than the maximum sliding stroke of the slider 35 within the groove 34, the maximum deformable deformation of the sensor wiring harness is also greater than the maximum sliding stroke of the slider 35. Therefore, the rear end of the sensor wiring harness will not be pulled during the sliding process of the slider 35.

[0100] As shown in Figure 6, in order to make reasonable use of space, the winding spring 7 is provided in the slide groove 34 in this embodiment, and the fixing part is a fixing slot opened at the rear end of the slide groove 34. A fixing plate is detachably fixed on the fixing slot, and the fixing plate is used to press the sensor wire harness into the fixing slot.

[0101] Specifically, in this embodiment, the rear end of the sensor harness extends from the coil spring 7 through a fixing slot to form a first clamping and fixing member 32. The portion of the sensor harness in the fixing slot is pressed and fixed by a fixing plate. During the movement of the electromagnetic navigation sensor, the portion of the sensor harness extending from the first clamping and fixing member 32 remains stationary, while only the portion wrapped around the coil spring 7 stretches with the extension of the coil spring 7, thereby achieving follow-up with the electromagnetic navigation sensor and completely avoiding pulling on the external sensor harness.

[0102] Since the second end of the winding spring 7 needs to be fixed, in one embodiment, as shown in FIG5, a fixing seat 8 is provided on the handle fixing assembly 3, and in particular, the fixing seat 8 can be provided on the first clamping fixing member 32. The fixing seat 8 is located in front of the fixing slot, and the rear end of the winding spring 7 is fixedly connected to the fixing seat 8. A wire passage groove 80 is provided on the fixing seat 8 for the sensor wire harness to pass through.

[0103] Specifically, in this embodiment, the rear end of the sensor harness passes through the wire groove 80 and then through the fixing slot after being wound onto the winding spring 7. The fixed connection between the rear end of the winding spring 7 and the fixing seat 8 can be achieved by welding, bonding, or locking structures such as locking screws; this embodiment does not impose any restrictions on these methods.

[0104] In one embodiment, to facilitate fixing the rear end of the winding spring 7, the fixing base 8 is provided with a spring-passing hole, which is located below the wire-passing groove 80. The rear end of the winding spring 7 passes through the spring-passing hole and is locked in place. Specifically, in this embodiment, the fixing base 8 is provided with a threaded hole radially opened along the spring-passing hole, and a locking screw is threaded into the threaded hole. The locking screw can press the rear end of the winding spring 7 into the spring-passing hole. Of course, those skilled in the art can also use other methods for fixing, and the above description is not limiting.

[0105] As shown in Figure 5, in order to control the stretching and contraction movements of the coil spring 7 within a set range, a guide post 81 is provided at the front end of the fixed base 8 in this embodiment, and the helical part of the coil spring 7 is sleeved on the guide post 81. The stretching and contraction movements of the coil spring 7 are both performed along the guide post 81, and the guide post 81 can prevent the coil spring 7 from deviating during the movement.

[0106] Based on the above embodiments, to reduce the inner diameter of the first sensor protection tube 2, the sensor wiring harness can be stripped. Specifically, the portion of the sensor wiring harness corresponding to the first sensor protection tube 2 can be stripped of its insulation, thereby reducing the diameter of that portion of the sensor wiring harness and thus reducing the diameter requirement of the first sensor protection tube 2. Similarly, the portions of the sensor wiring harness located on the second sliding channel 36, the sliding groove 34, the slider 35, and the winding spring 7 can also be stripped. The portion of the sensor wiring harness fixed to the rear end of the first clamping fastener 32 can retain its insulation, thereby improving structural strength.

[0107] In one embodiment, the sensor harness is directly threaded through the first sliding channel 200 and the second sliding channel 36. Since the sensor harness may slide relative to the sliding channels, to better protect the harness, in another embodiment, as shown in FIG8, the protective tube fixture further includes a second sensor protective tube 10. The second sensor protective tube 10 is slidably threaded through the first sliding channel 200, and a third mounting channel is provided within the second sensor protective tube 10 for mounting the electromagnetic navigation sensor.

[0108] In this embodiment, during installation, the electromagnetic navigation sensor can be pre-inserted into the third mounting channel of the second sensor protection tube 10, with the front end of the electromagnetic navigation sensor extending out of the second sensor protection tube 10. The stripped sensor wire harness is accommodated in the third mounting channel, and the sensor wire harness can be fixed to the second sensor protection tube 10 with adhesive. Then, the electromagnetic navigation sensor and the second sensor protection tube 10 are inserted together into the first sliding channel 200 of the first sensor protection tube 2. As the electromagnetic navigation sensor moves with the ultrasonic transmitter, the second sensor protection tube 10 will slide linearly within the first mounting channel 100, thus protecting the sensor wire harness.

[0109] As shown in Figure 6, in one embodiment, the rear end of the first sensor protection tube 2 extends to near the middle of the third sliding section 363. The rear end of the second sensor protection tube 10 extends out of the rear end of the first sensor protection tube 2 and extends into the sliding groove 34 via the third sliding section 363, finally being fixed to the slider 35. The stripped wire of the sensor harness extends out of the rear end of the second sensor protection tube 10, passes through the slider 35, and is wound around the winding spring 7. The portion of the sensor harness with the wire sheath passes through the first clamping and fixing member 32 and is fixed to the first clamping and fixing member 32.

[0110] To facilitate the installation of the sensor wiring harness on the slider 35, as shown in Figure 5, the slider 35 in this embodiment is provided with a mounting groove 350. The mounting groove 350 passes through the slider 35 along the sliding direction of the slider 35 and is used to fix the sensor wiring harness.

[0111] In one embodiment, the second sensor protection tube 10 needs to be installed on the slider 35, and the sensor wiring harness also needs to be installed on the slider 35. Since the diameter of the sensor wiring harness is smaller than the outer diameter of the second sensor protection tube 10, the mounting groove 350 includes a first groove 3500 and a second groove 3501 arranged sequentially from front to back. The width of the first groove 3500 is greater than the width of the second groove 3501. The first groove 3500 is used to accommodate the second sensor protection tube 10, and the second groove 3501 is used to accommodate the sensor wiring harness and part of the spring wire of the winding spring 7.

[0112] When the rear end of the sensor harness passes through the second groove 3501 and is wound onto the winding spring 7, part of the wire insulation of the sensor harness located on the second groove 3501 and the winding spring 7 is removed.

[0113] Since the second sensor protection tube 10 also bends when the ultrasonic transmitter bends, in order to better protect the second sensor protection tube 10, as shown in Figure 2, in this embodiment, the front end of the first sensor protection tube 2 extends out of the front end of the protection tube 1 and forms an extension section 201. At least a portion of the extension section 201 is set as a transition section 202, which is formed by cutting the extension section along a spiral line.

[0114] Specifically, in this embodiment, the front end of the second sensor protection tube 10 extends beyond the front end of the first sensor protection tube 2. A spiral transition section 202 is provided on the extension 201 of the first sensor protection tube 2 extending out of the protective tube 1. The position of the transition section 202 is the bending position of the second sensor protection tube 10. In this embodiment, the transition section 202 can be formed by cutting the extension 201. The transition section 202 can be bent at any angle without breaking, thus protecting the second sensor protection tube 10 while also preventing the extension 201 of the first sensor protection tube 2 from breaking.

[0115] As shown in Figure 7, to further protect the first sensor protection tube 2, the protective tube fixture in this embodiment also includes a covered support 9. The covered support 9 is sleeved and fixed to the front end of the protective long tube 1, and the first sensor protection tube 2 passes through the covered support 9. When the ultrasonic transmitting part bends back, the covered support 9 can prevent the first sensor protection tube 2 from separating from the bend, thus preventing damage such as breakage of the first sensor protection tube 2. In this embodiment, the covered support 9 can be a cardiovascular stent from related technologies, and its specific structure is not limited here.

[0116] In this embodiment, the length of the covered stent 9 should satisfy the following condition: the front end of the covered stent 9 is fitted onto the curved portion of the intraoperative ultrasound probe, and the front end of the covered stent 9 bends during the bending process of the curved portion. By fitting the front end of the covered stent 9 onto the curved portion, the first sensor protection tube 2 can be made to fit as closely as possible to the curved portion of the intraoperative ultrasound probe, avoiding breakage of the first sensor protection tube during bending. In this embodiment, the transition section 202 of the first sensor protection tube 2 extends beyond the front end of the covered stent 9.

[0117] To facilitate the installation of the film-coated support 9 on the protective tube 1, as shown in Figures 7 and 8, the film-coated support 9 in this embodiment includes a large-diameter section 90 and a small-diameter section 91. The large-diameter section 90 is sleeved and fixed to the front end of the protective tube 1, the front end of the extension section extends out to the small-diameter section 91, and the transition section 202 extends out to the small-diameter section 91.

[0118] In another embodiment, to protect the first sensor protection tube 2, the film support 9 can be replaced with heat shrink tubing or other tubular structures that have a certain support capacity and can be contracted.

[0119] In one embodiment, the protective tube 1, the first sensor protective tube 2, and the second sensor protective tube 10 are all made of biocompatible materials, such as nickel-titanium, or the protective tube 1 is made of stainless steel. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A protective tube tooling for an intraoperative ultrasound probe, characterized in that, include: A protective tube is provided, and a first installation channel is provided inside the protective tube. The first installation channel is used to install an intraoperative ultrasound probe. A first sensor protection tube is fixed inside the protective tube. A first sliding channel is established inside the first sensor protection tube. The first sliding channel is used to accommodate a sensor wire harness. A handle fixing assembly is provided with a second mounting channel. The handle fixing assembly is fixed to the end of the protective tube. The second mounting channel is connected to the first mounting channel. The second mounting channel is used for the front end of the intraoperative ultrasound probe to pass through and accommodate the probe handle end of the intraoperative ultrasound probe. The handle fixing assembly is provided with a sliding groove, and a slider is provided in the sliding groove. The sliding groove is connected to the first sliding channel, and the slider is used to fix the sensor wire harness.

2. The protective tube fixture for an intraoperative ultrasound probe according to claim 1, characterized in that, The handle fixing assembly is provided with a second sliding channel, and the two ends of the second sliding channel are respectively connected to the first sliding channel and the slide groove.

3. The protective tube fixture for an intraoperative ultrasound probe according to claim 2, characterized in that, The handle fixing assembly includes a connector, a first clamping fixing component, and a second clamping fixing component; The connector is fixedly sleeved at the end of the protective tube. The first clamping and fixing member and the second clamping and fixing member are distributed opposite to each other. The first clamping and fixing member and the second clamping and fixing member are used to clamp and fix the probe handle end of the ultrasound probe during the operation. The groove is provided on the first clamping and fixing member or the second clamping and fixing member.

4. The protective tube fixture for an intraoperative ultrasound probe according to claim 3, characterized in that, The first clamping and fixing member includes a fixed section and a movable section. The fixed section is configured as a gripping section. The first end of the fixed section is fixedly connected to the upper side of the connector, and the second end of the fixed section is hinged to the first end of the movable section. The first end of the second clamping and fixing member is hinged to the lower side of the connecting member; The second end of the movable segment and the second end of the second clamping and fixing member are detachably and fixedly connected by a locking member; The slide groove is provided on the movable section, and the second sliding channel includes a first sliding section, a second sliding section and a third sliding section. The first sliding section is located on the connector, the second sliding section is located on the fixed section, and the third sliding section is located on the movable section.

5. The protective tube fixture for an intraoperative ultrasound probe according to claim 4, characterized in that, The end of the first sensor protection tube extends from the first sliding section and the second sliding section to the third sliding section; When the active segment is at its maximum external rotation angle, the opening and closing angle between the second sliding segment and the third sliding segment is less than 20°.

6. The protective tube fixture for an intraoperative ultrasound probe according to claim 4, characterized in that, The locking component includes a first latch and a second latch. The first latch is fixed to the second end of the movable section, and the second latch is fixed to the second end of the second clamping and fixing component. The first latch and the second latch are connected.

7. The protective tube fixture for an intraoperative ultrasound probe according to claim 3, characterized in that, The first clamping and fixing member is also provided with a winding spring and a fixing part. The winding spring is located at the rear end of the slider, the front end of the winding spring is fixedly connected to the slider, and the rear end of the winding spring is fixed on the first clamping and fixing member. The fixing part is located at the rear end of the winding spring, the winding spring is used to wind the sensor wire harness, and the fixing part is used to fix the sensor wire harness. The maximum tension of the winding spring is greater than the maximum sliding stroke of the slider within the groove.

8. The protective tube fixture for an intraoperative ultrasound probe according to claim 7, characterized in that, The winding spring is disposed in the slide groove, and the fixing part is a fixing slot opened at the rear end of the slide groove. A fixing plate is detachably fixed on the fixing slot, and the fixing plate is used to press the sensor wire harness into the fixing slot. The handle fixing assembly is also provided with a fixing seat, which is located in front of the fixing slot, and the rear end of the winding spring is fixedly connected to the fixing seat; The mounting base has a wire passage groove for the sensor wire harness to pass through.

9. The protective tube fixture for an intraoperative ultrasound probe according to claim 1, characterized in that, The protective tube fixture also includes a second sensor protective tube, which is slidably inserted into the first sliding channel. A third mounting channel is provided inside the second sensor protective tube, and the third mounting channel is used to install an electromagnetic navigation sensor.

10. The protective tube fixture for an intraoperative ultrasound probe according to claim 9, characterized in that, The slider is provided with a mounting groove that extends through the slider along the sliding direction of the slider and is used to fix the sensor wiring harness. The mounting slot includes a first slot and a second slot arranged sequentially from front to back. The width of the first slot is greater than the width of the second slot. The first slot is used to accommodate the second sensor protection tube, and the second slot is used to accommodate the sensor wiring harness.

11. The protective tube fixture for an intraoperative ultrasound probe according to claim 1, characterized in that, The front end of the first sensor protection tube extends beyond the front end of the protection tube to form an extension section, and at least a portion of the extension section is configured as a transition section formed by cutting the extension section along a spiral line.

12. The protective tube fixture for an intraoperative ultrasound probe according to claim 1, characterized in that, The protective tube fixture also includes a film-coated bracket, which is sleeved and fixed to the front end of the protective long tube, and the first sensor protective tube passes through the film-coated bracket.

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