Protective tube tooling for intraoperative ultrasound probes

By designing protective tube tooling, including protective long tube and handle fixing components, the problem of inconvenient installation of navigation equipment and intraoperative ultrasonic probes is solved, the installation efficiency and safety are improved, and the sensor wiring harness is protected.

CN118986402BActive Publication Date: 2024-12-20BEIJING MEDIS MEDICAL TECHNONLGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411445272.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-16
Publication Date
2024-12-20
Estimated Expiration
2044-10-16

AI Technical Summary

Technical Problem

In the prior art, the installation of navigation equipment and intraoperative ultrasonic probes is inconvenient, resulting in low operating efficiency and insufficient safety.

Method used

A protective tube tool set including a protective long tube and handle fixing assembly is designed. By providing installation and sliding channels within the protective long tube, it facilitates installation and fixation of intraoperative ultrasonic probes and electromagnetic navigation sensors, and is carried out through wire springs and buckles. Cover protects the sensor wiring harness.

Benefits of technology

It realizes convenient installation of navigation equipment and intraoperative ultrasonic probes, improves operating efficiency and safety, and avoids damage to the equipment and wiring harness during use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118986402B_ABST
    Figure CN118986402B_ABST
Patent Text Reader

Abstract

The present invention discloses a protective tube tooling for an intraoperative ultrasonic probe, comprising: a protective long tube, a first installation channel is arranged in the protective long tube, the first installation channel is used to install the intraoperative ultrasonic probe, a first sensor protective tube is fixedly arranged in the protective long tube, a first sliding channel is established in the first sensor protective tube, and the first sliding channel accommodates a sensor harness; a handle fixing assembly, a second installation channel is arranged in the handle fixing assembly, the handle fixing assembly is fixedly arranged at the end of the protective long tube, the second installation channel is communicated with the first installation channel, and the second installation channel is used for the front end of the intraoperative ultrasonic probe to pass through and accommodate and fix the probe handle end of the intraoperative ultrasonic probe. The present invention establishes an installation channel for the intraoperative ultrasonic probe through the protective long tube and the handle fixing assembly, and establishes an installation channel for the electromagnetic navigation sensor through the first sensor protective tube, thereby facilitating the installation and combination of the intraoperative ultrasonic probe and the electromagnetic navigation sensor.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a protective tube tooling for an intraoperative ultrasonic probe. Background Art

[0002] Intraoperative ultrasound probes are used to obtain ultrasound images of human tissue during interventional puncture surgeries. In related technologies, ultrasound probes are combined with navigation devices to achieve precise surgical operations. The navigation device can locate the spatial position of the ultrasound probe, and then the position of the puncture needle in the ultrasound image can be determined based on the spatial position of the puncture needle, thereby helping doctors to perform surgical operations accurately with the help of ultrasound images.

[0003] In the related art, a navigation device such as a navigation sensor needs to be installed on an ultrasonic probe as a separate component for use. However, there is currently a lack of specific installation tooling, which makes the combination of the navigation device and the ultrasonic probe inconvenient. Summary of the invention

[0004] The main purpose of the present invention is to provide a protective tube tooling for an intraoperative ultrasound probe to solve the problem of inconvenient installation and combination of a navigation device and an intraoperative ultrasound probe in the related art.

[0005] In order to achieve the above object, the present invention provides a protective tube tooling for an intraoperative ultrasound probe, comprising:

[0006] A protective long tube, wherein a first installation channel is provided in the protective long tube, the first installation channel is used to install an intraoperative ultrasound probe, a first sensor protective tube is fixedly provided in the protective long tube, a first sliding channel is established in the first sensor protective tube, and the first sliding channel accommodates a sensor harness;

[0007] A handle fixing assembly is provided with a second mounting channel therein, the handle fixing assembly is fixedly arranged at the end of the protective long tube, the second mounting channel is communicated with the first mounting channel, and the second mounting channel is used for the front end of the intraoperative ultrasound probe to pass through and accommodate and fix the probe handle end of the intraoperative ultrasound probe.

[0008] Furthermore, a slide groove is provided on the handle fixing assembly, a sliding block is provided in the slide groove, the slide groove is communicated with the first sliding channel, and the sliding block is used to fix the sensor harness.

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

[0010] Furthermore, a snap-fit ​​cover is provided on the handle fixing assembly, and the snap-fit ​​cover is snap-fitted and fixed on the slide groove.

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

[0012] The connecting piece is fixedly sleeved on the end of the protective long tube, the first clamping fixture and the second clamping fixture are relatively distributed, and the first clamping fixture and the second clamping fixture are used to clamp and fix the probe handle end of the ultrasound probe during surgery;

[0013] The sliding groove is arranged on the first clamping fixture or the second clamping fixture.

[0014] Furthermore, the inner side profiles of the first clamping fixture and the second clamping fixture match the surface profile of the probe handle end of the intraoperative ultrasound probe.

[0015] Furthermore, the first clamping fixture comprises a fixed section and a movable section, the fixed section is configured as a gripping section, a first end of the fixed section is fixedly connected to the upper side of the connecting member, and a second end of the fixed section is hinged to the first end of the movable section;

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

[0017] The second end of the movable section and the second end of the second clamping fixture are detachably fixedly connected via a locking member;

[0018] The slide groove is arranged on the movable section, 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 connecting member, 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 to the third sliding section through the first sliding section and the second sliding section;

[0020] When the movable segment is at the 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 member includes a first buckle and a second buckle, the first buckle is fixed to the second end of the movable section, the second buckle is fixed to the second end of the second clamping member, and the first buckle and the second buckle are buckled together.

[0022] Furthermore, buckle grooves are provided on both sides of the first buckle, and the second buckle includes a base, a torsion spring and a clamping strip, the clamping strip is provided in two and is hinged on both sides of the base through a rotating shaft, the torsion spring is sleeved on the rotating shaft, the first end of the clamping strip is provided with a clamping protrusion, the second end of the clamping strip is provided with a push handle, and the buckle groove and the clamping protrusion are buckled and connected.

[0023] Furthermore, a winding spring is also provided on the first clamping fixture, 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, the rear end of the winding spring is fixed to the handle fixing assembly, and the winding spring is used for winding the sensor harness;

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

[0025] The maximum stretching amount of the winding spring is greater than the maximum sliding stroke of the slider in the sliding groove.

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

[0027] Furthermore, a fixing seat is also provided on the handle fixing assembly, and the fixing seat 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 fixing seat is provided with a wire passing groove, and the wire passing groove is used for the sensor wire harness to pass through.

[0029] Furthermore, the protection tube tooling also includes a second sensor protection tube, which is slidably inserted into the first sliding channel. A third installation channel is provided in the second sensor protection tube, and the third installation channel is used to install the electromagnetic navigation sensor.

[0030] Furthermore, a mounting groove is provided on the slider, and the mounting groove penetrates the slider along the sliding direction of the slider, and the mounting groove is used to fix the sensor harness.

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

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

[0033] Furthermore, the protection tube tooling also includes a film-covered bracket, which is sleeved and fixed on the front end of the protection long tube, and the first sensor protection tube is inserted into the film-covered bracket.

[0034] Furthermore, the stent graft comprises a large diameter section and a small diameter section, and the large diameter section is sleeved and fixed on the front end of the protective long tube;

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

[0036] Furthermore, the long protective tube and the first sensor protective tube may both be nickel-titanium protective tubes, or the long protective tube may be a stainless steel protective tube. In the embodiment of the present invention, a long protective tube is provided, a first installation channel is provided in the long protective tube, the first installation channel is used to install the intraoperative ultrasound probe, a first sensor protective tube is fixed in the long protective tube, a first sliding channel is established in the first sensor protective tube, the first sliding channel is used to accommodate the sensor harness; a handle fixing assembly, a second installation channel is provided in the handle fixing assembly, the handle fixing assembly is fixed at the end of the long protective tube, the second installation channel is connected to the first installation channel, the second installation 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 passed through the second installation channel of the handle fixing assembly and passed out after passing through the first installation channel of the long protective tube, the probe handle end of the intraoperative ultrasound probe is installed and fixed in the handle fixing assembly, the sensor 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 protecting the long tube and the handle fixing assembly, and establishes an installation channel for the electromagnetic navigation sensor by using the first sensor protection tube, thereby facilitating the installation and combination of the intraoperative ultrasound probe and the electromagnetic navigation sensor, thereby solving the problem of inconvenient installation and combination of the navigation device and the intraoperative ultrasound probe in the related art;

[0037] On the other hand, after installation, the protective long tube can protect the ultrasonic probe during surgery. At the same time, the first sensor protection tube can also protect the sensor harness, thereby avoiding damage during use and improving safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and advantages of the present invention become more obvious. The accompanying drawings of the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

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

[0040] Figure 1b yes Figure 1a Schematic diagram of the local structure in;

[0041] Figure 2 is a schematic diagram of the structure after the intraoperative ultrasound probe is installed according to an embodiment of the present invention;

[0042] Figure 3 is a schematic structural diagram of a handle fixing assembly according to an embodiment of the present invention;

[0043] Figure 4 yes Figure 3 A schematic diagram of the partially enlarged structure;

[0044] Figure 5 is a structural schematic diagram of a handle fixing assembly from another perspective according to an embodiment of the present invention;

[0045] Figure 6 is a schematic diagram of the structure of the stent graft after installation according to an embodiment of the present invention;

[0046] Figure 7 is a schematic structural diagram of the second sensor protection tube after installation according to an embodiment of the present invention;

[0047] Figure 8 is a schematic structural diagram of a locking member according to an embodiment of the present invention;

[0048] Fig. 9 is a schematic diagram of the rear view structure of the protection tube tooling according to an embodiment of the present invention;

[0049] Fig.10 is a schematic diagram of the structure of an intraoperative ultrasound probe after assembly according to an embodiment of the present invention;

[0050] Among them, 1 protective long tube, 100 first installation channel, 2 first sensor protection tube, 200 first sliding channel, 3 handle fixing assembly, 31 connecting piece, 32 first clamping fixing piece, 320 fixed section, 321 movable section, 33 second clamping fixing piece, 34 sliding groove, 35 sliding block, 350 installation groove, 3500 first groove body, 3501 second groove body, 36 second sliding channel, 361 first sliding section, 362 second sliding section, 363 third sliding section, 37 snap-on cover, 38 second installation channel, 4 intraoperative ultrasound probe, 40 probe handle end, 6 locking piece, 60 first buckle, 61 second buckle, 610 clamping strip, 611 base, 612 push handle, 7 winding spring, 8 fixing seat, 80 wire groove, 81 guide column, 9 film covering bracket, 90 large diameter section, 91 small diameter section, 10 second sensor protection tube, 11 probe buckle, 12 clamping piece. DETAILED DESCRIPTION

[0051] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0052] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged under appropriate circumstances to facilitate the embodiments of the present invention described herein.

[0053] In the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "inner", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0054] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0055] In addition, the terms "disposed", "provided with", "connected", "fixed" and the like should be understood in a broad sense. 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, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In addition, the term "plurality" shall mean two or more.

[0057] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0058] To solve relevant technical problems, such as Figure 1a and Figure 2 As shown, an embodiment of the present invention provides a protective tube tooling for an intraoperative ultrasound probe 4, comprising:

[0059] A protective long tube 1 is provided with a first installation channel 100 in the protective long tube 1, and the first installation channel 100 is used to install an intraoperative ultrasound probe 4. A first sensor protective tube 2 is fixed in the protective long tube 1, and a first sliding channel 200 is established in the first sensor protective tube 2, and the first sliding channel 200 is used to accommodate a sensor harness;

[0060] The handle fixing assembly 3 is provided with a second mounting channel 38, and the handle fixing assembly 3 is fixed at the end of the protective long tube 1. The second mounting channel 38 is communicated with the first mounting channel 100. The second mounting channel 38 is used for the front end of the intraoperative ultrasound probe 4 to pass through and accommodate and fix the probe handle end 40 of the intraoperative ultrasound probe 4.

[0061] In this embodiment, the protective tube tooling 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 insertion tube, and an ultrasonic transmitter located at the front end of the insertion tube. The electromagnetic navigation sensor needs to be installed on the back of the ultrasonic transmitter. The electromagnetic navigation sensor and the ultrasonic transmitter can be connected by a specific snap assembly or adhesive, etc., which is not limited in this embodiment.

[0062] like Fig.10As shown, in one embodiment, the electromagnetic navigation sensor and the ultrasonic transmitter can be connected through a specific buckle assembly, which includes a probe buckle 11, a slot and a clamping member 12. The probe buckle 11 can be sleeved on the ultrasonic transmitter, and the probe buckle 11 has an opening to avoid the emission window of the ultrasonic transmitter. The slot is installed on the inner side of the probe buckle 11, and the electromagnetic navigation sensor is installed on the slot. Under the action of the probe buckle 11, it fits on the outer side of the ultrasonic transmitter. The clamping member 12 can be sleeved on the rear end of the probe buckle 11 to hold the probe buckle 11 tightly on the ultrasonic transmitter. It should be noted that the structural description of the buckle assembly in this embodiment is not restrictive, and those skilled in the art may also use buckle assemblies with other structures.

[0063] Since electromagnetic navigation sensors need to be connected to wiring harnesses for use, the layout of the sensor wiring harnesses also needs to be considered. Figure 1a As shown, in this embodiment, the protection tube tooling mainly includes a protection long tube 1, a first sensor protection tube 2 and a handle fixing assembly 3. The protection long tube 1 is a long tubular structure with a hollow cavity to form a first installation channel 100, and the first installation channel 100 is used for inserting the ultrasound probe 4 during surgery. The handle fixing assembly 3 is fixed to the rear end of the protection long tube 1, and a second installation channel 38 connected to the first installation channel 100 is provided on the handle fixing assembly 3. During installation, as shown in FIG. Figure 2 As shown, the insertion tube of the intraoperative ultrasound probe 4 is inserted from the second installation channel 38 and after passing through the first installation channel 100, the ultrasonic emitting part located at the front end of the insertion tube passes 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 in 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. In one fixing method, it can be fixed by buckle fixing or screw fixing, etc., which is not limited in this embodiment.

[0064] After the ultrasound probe 4 is installed on the protection tube fixture during the operation, the electromagnetic navigation sensor needs to be installed on the protection tube fixture. Figure 1a As shown, in this embodiment, a first sensor protection tube 2 is disposed in the protection long tube 1. The first sensor protection tube 2 is a long tubular structure with a hollow cavity to form a first sliding channel 200. Both ends of the first sliding channel 200 are open structures. The sensor harness of the electromagnetic navigation sensor can penetrate from the rear end of the first sliding channel 200 and extend to the front of the first sliding channel 200. The sensor harness is at least partially located in the first sliding channel 200.

[0065] On 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 protective tube 2, so as to facilitate the installation and combination of the intraoperative ultrasound probe 4 and the electromagnetic navigation sensor, thereby solving the problem of inconvenient installation and combination of the navigation device and the intraoperative ultrasound probe 4 in the related art;

[0066] On the other hand, after installation, the protective long tube 1 can protect the intraoperative ultrasound probe 4, and the first sensor protection tube 2 can also protect the sensor harness, thereby avoiding damage during use and improving safety of use.

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

[0068] For this reason, Figure 1a and Figure 3 As shown, in this embodiment, a slide groove 34 is provided on the handle fixing assembly 3, a slider 35 is provided in the slide groove 34, the slide groove 34 is communicated with the first sliding channel 200, and the slider 35 is used to fix the sensor harness.

[0069] Specifically, in this embodiment, the electromagnetic navigation sensor is inserted from the rear end of the first sliding channel 200, and the sensor harness is inserted in the first sliding channel 200. When the electromagnetic navigation sensor is installed to the set position (i.e., the length extending out of the first sliding channel 200 meets the design value), the sensor harness is installed in the slide groove 34, and the sensor harness is fixed on the slider 35, and the end of the sensor harness extends backward to connect with the device. In the process of the electromagnetic navigation sensor moving with the ultrasonic transmitter, the sensor harness drives the slider 35 to slide in the slide groove 34, and the slider 35 cooperates with the slide groove 34 to provide support for the movement of the electromagnetic navigation sensor while constraining the sensor harness. In addition, in this embodiment, after the sensor harness is set in the handle fixing assembly 3 of the tooling, the sensor harness is hidden in the tooling as a whole, and the tooling can protect the sensor harness to avoid damage during use. In the present invention, the sensor harness may only include a harness connected to the electromagnetic navigation sensor, or may include a harness connected to the electromagnetic navigation sensor and a protective sleeve or protective tube sleeved outside the harness.

[0070] The handle fixing assembly 3 is used by doctors to hold and operate the intraoperative ultrasound probe 4, so it has a length and shape that meet the operation requirements. Since the movement of the electromagnetic navigation sensor is only to follow the bending and deformation of the ultrasonic emitting part relative to the intraoperative ultrasound probe within a certain angle, the sliding stroke of the moving slider 35 in the slide groove 34 is relatively short, that is, the length of the slide groove 34 does not need to be set too long. On this basis, in order to ensure the sliding of the sensor harness relative to the handle fixing assembly 3, such as Figure 5 As shown, in this embodiment, a second sliding channel 36 is provided on the handle fixing assembly 3 , and two ends of the second sliding channel 36 are respectively connected to the first sliding channel 200 and the sliding groove 34 .

[0071] In other words, in this embodiment, two channels are provided on the handle fixing assembly 3, one of which is the second sliding channel 36, and the other is the slide groove 34. The second sliding channel 36 only needs to accommodate the sensor harness and slide with the sensor harness, and the slide groove 34 needs to provide a sliding track for the slider 35. Figure 5 As shown, in this embodiment, the slide groove 34 can be opened at a position close to the end of the handle fixing assembly 3.

[0072] After setting the second sliding channel 36, 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 out 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] On the basis of providing the slide 34, as Figure 8 As shown, in order to better protect the sensor harness, the slide groove 34 and the slider 35 , a snap-fit ​​cover 37 is provided on the handle fixing assembly 3 in this embodiment, and the snap-fit ​​cover 37 is snap-fitted and fixed on the slide groove 34 .

[0074] Specifically, in this embodiment, the snap-on cover 37 is snap-on and fixed to the handle fixing assembly 3, and the snap-on cover 37 can cover the slide groove 34, thereby playing a protective role. The snap-on cover 37 can be set as a flip-top structure, one side of which is hinged to the handle fixing assembly 3, and the other side is snap-connected or screw-fixed to the handle fixing assembly 3. Of course, the snap-on cover 37 can also be set as a separate cover-like structure, with snaps set at the edge of the snap-on cover 37, and snap-connected to the handle fixing assembly 3 through the snaps.

[0075] The handle fixing assembly 3 is used as a structure for fixing the probe handle end 40 of the ultrasound probe 4 during surgery. Figure 1a and Figure 2 As shown, in one embodiment, the handle fixing assembly 3 is fixed by holding the probe handle end 40 of the intraoperative ultrasound probe 4. In this embodiment, the handle fixing assembly 3 includes a connecting member 31, a first clamping fixing member 32 and a second clamping fixing member 33;

[0076] The connecting member 31 is fixedly sleeved on the end of the protective long tube 1, and the first clamping fixing member 32 and the second clamping fixing member 33 are arranged relatively to each other. The first clamping fixing member 32 and the second clamping fixing member 33 are used to clamp and fix the probe handle end 40 of the ultrasonic probe 4 during surgery;

[0077] The sliding groove 34 is disposed on the first clamping fixture 32 or the second clamping fixture 33 .

[0078] Specifically, it should be noted that the handle fixing assembly 3 includes a first clamping fixture 32 and a second clamping fixture 33 that are relatively distributed, and a connecting member 31 that can be fixed to the rear end of the protective long tube 1. The connecting member 31 can be an annular structure that is sleeved and fixed to the rear end of the protective long tube 1, or it can be at least two connecting blocks fixed to the rear end of the protective long tube 1. A second installation channel 38 is formed between the first clamping fixture 32 and the second clamping fixture 33. When installing the intraoperative ultrasound probe 4, the first clamping fixture 32 and the second clamping fixture 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 fixture 32 and the second clamping fixture 33 are adjusted to hold the probe handle end 40 of the intraoperative ultrasound probe 4.

[0079] In one embodiment of the first clamping fixture 32 and the second clamping fixture 33, the first clamping fixture 32 and the second clamping fixture 33 may be hinged to the connecting member 31, so that they can be opened or clamped in a rotating manner. In another embodiment, the first clamping fixture 32 and the second clamping fixture 33 may be slidably connected to the connecting member 31, and the sliding direction is radial, so that they can be opened or clamped 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 fixture 32 or the second clamping fixture 33, and this embodiment does not limit this. On this basis, in order to improve the degree of the two clamping fixtures to hold the probe handle end 40 of the intraoperative ultrasound probe 4 tightly, the inner side profiles of the first clamping fixture 32 and the second clamping fixture 33 in this embodiment have a surface profile that matches the probe handle end 40 of the intraoperative ultrasound probe 4.

[0081] In terms of distribution, the first clamping fixture 32 can be located above the second clamping fixture 33, so when holding, the first clamping fixture 32 contacts the doctor's palm. Since the first clamping fixture 32 and the second clamping fixture 33 are both movably connected to the connecting member 31, it is obvious that the connection structure set at the connection position will affect the doctor's holding. Figure 1aAs shown, in this embodiment, the first clamping fixture 32 is divided into two sections, which can be specifically divided into a fixed section 320 and a movable section 321 according to the doctor's gripping area. The first end of the fixed section 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 section 321. After the fixed section 320 and the connecting member 31 are fixedly connected, the two can be integrally formed or end-face welded, so that the connection position of the fixed section 320 and the connecting member 31 is relatively smooth, so that it is easy to operate when the fixed section 320 is used as the doctor's gripping section.

[0082] In addition, it should be noted that the length of the fixed section 320 should be selected based on the structure of the probe handle end 40 of the intraoperative ultrasound probe 4 in addition to the doctor's gripping area. In one embodiment, the probe handle end 40 of the intraoperative ultrasound probe 4 has a protrusion in the middle. Since the fixed section 320 is a fixed structure, considering the installation of the probe handle end 40, the rear end of the fixed 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 fixed section 320 also needs to be adjusted according to the structural characteristics of the probe handle end 40, which will not be described in detail in this embodiment.

[0083] In this embodiment, in order to make the entire structure more compact and to facilitate clamping and fixing the probe handle end 40 of the ultrasound probe 4 during surgery, a rotational motion is adopted in this embodiment. Figure 1a As shown, 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 fixture 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 upward and the second clamping fixture 33 can be rotated downward to make way for the installation channel of the intraoperative ultrasound probe 4. After installation, the movable section 321 can be rotated downward to fit the upper area of ​​the probe handle end 40 of the intraoperative ultrasound probe 4, and the second clamping fixture 33 can be rotated upward to fit the lower area of ​​the probe handle end 40. Figure 3 As shown, in order to facilitate the gripping of the probe handle end 40, in this embodiment, the second end of the movable section 321 and the second end of the second clamping fixture 33 are detachably fixedly connected by a locking member 6. The locking member 6 in this embodiment serves to connect the second end of the movable section 321 and the second clamping fixture 33. In one embodiment, the locking member 6 can be a latch, a locking screw or a buckle structure, etc., which is not limited in this embodiment.

[0085] After the first clamping fixture 32 is divided into a fixed section 320 and a movable section 321, the slide groove 34 is arranged on the movable section 321. Figure 5 As shown, the second sliding channel 36 opened on the first clamping 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 part of the movable section 321 has a third sliding section 363, and the rear part of the movable section 321 has a slide groove 34, and the slide groove 34 is connected to the third sliding section 363. The end of the first sensor protection tube 2 extends to the third sliding section 363 through the first sliding section 361 and the second sliding section 362, and the end of the first sensor protection tube 2 can selectively extend into the slide groove 34 or not extend into the slide groove 34. Since the end of the first sensor protection tube 2 extends into the movable section 321 through the fixed section 320, when the intraoperative ultrasound probe 4 is installed, the movable section 321 needs to be rotated and opened relative to the fixed section 320. In order to avoid the first sensor protection tube 2 from being bent and damaged due to excessive rotation angle, the maximum rotation angle of the movable section 321 needs to be limited. In one embodiment, when the movable section 321 is at the maximum external rotation angle, the opening and closing angle between the second sliding section 362 and the third sliding section 363 is less than 20°.

[0087] In an embodiment of limiting the rotation angle, a limit lever is provided on the fixed section 320, and the limit lever is located in the rotation direction of the movable section 321. When the movable section 321 rotates upward to contact with the limit lever, the movable section 321 cannot rotate further, thereby limiting the maximum rotation angle of the movable section 321. In another embodiment, the rotation angle can be limited by adjusting the hinged portion of the movable section 321 and the fixed section 320, which will not be described in detail in this embodiment.

[0088] like Figure 8 and Fig. 9 As shown, in order to achieve locking of the first clamping fixture 32 and the second clamping fixture 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 fixture 33. The first buckle 60 and the second buckle 61 are buckled in connection.

[0089] Specifically, in this embodiment, after the first clamping fixture 32 and the second clamping fixture 33 are rotated and tightly embraced on the probe handle end 40 of the intraoperative ultrasound probe 4, the first buckle 60 and the second buckle 61 can be operated to buckle and connect to achieve locking of the first clamping fixture 32 and the second clamping fixture 33. In an embodiment of the first buckle 60 and the second buckle 61, at least one of the first buckle 60 and the second buckle 61 is configured to have elasticity, and can automatically snap in during the pressing process due to its own elasticity.

[0090] Specifically, buckle grooves are provided on both sides of the first buckle 60, and the second buckle 61 includes a base 611, a torsion spring and a clamping strip 610. The clamping strip 610 is provided in two and is hinged on both sides of the base 611 through a rotating shaft. The torsion spring is sleeved on the rotating shaft. A clamping protrusion is provided at the first end of the clamping strip 610, and a push handle 612 is provided at the second end of the clamping strip 610. The buckle groove and the clamping protrusion are buckled and connected.

[0091] In this embodiment, during the process of buckling the first clamping fixture 32 and the second clamping fixture 33, the lower end of the first buckle 60 abuts against the upper end of the clamping strip 610. As the first clamping fixture 32 and the second clamping fixture 33 are further buckled, the first buckle 60 pushes the clamping strip 610 to rotate outward and compresses the torsion spring. When the buckle groove on the first buckle 60 corresponds to the clamping protrusion on the clamping strip 610, the first clamping fixture 32 and the second clamping fixture 33 are tightly held on the probe handle end 40 of the intraoperative ultrasound probe 4, and at the same time, the clamping strip 610 rotates inward under the elastic force of the torsion spring, so that the buckle groove and the clamping protrusion bite, thereby completing the locking.

[0092] When disassembly is required, the clamping strip 610 can be rotated to disengage the clamping protrusion from the clamping groove. In order to facilitate the first clamping strip 60 to push the clamping strip 610 to rotate during the locking process, in this embodiment, the surface at the lower end of the first clamping strip 60 for contacting the clamping strip 610 is set as an inclined surface, and the surface at the upper end of the clamping strip 610 for contacting the first clamping strip 60 is set as an inclined surface, and the force transmission is achieved through the cooperation of the two inclined surfaces.

[0093] like Fig. 9 As shown, in order to facilitate the rotation of the clamping strip 610 during disassembly, a push handle 612 is provided at the lower end of the clamping strip 610 in this embodiment, and the push handle 612 is perpendicular to the end surface of the clamping strip 610. In one embodiment, in order to facilitate the installation of the clamping strip 610 and the torsion spring, the base 611 is provided as a U-shaped base, and an arc groove is provided in the base 611. The two clamping strips 610 are provided in an arc shape and are installed in the arc groove through a rotating shaft. The torsion spring is sleeved on the rotating shaft and is located in the arc groove. The clamping strip 610 rotates within a certain angle range in the arc groove.

[0094] After the sensor harness is fixedly connected to the slider 35, it also needs to pass through the through hole at the rear end of the first clamping fixture 32. During the bending of the ultrasonic emitting portion of the ultrasound probe 4 during the operation, the electromagnetic navigation sensor moves synchronously, so that the sensor harness drives the slider 35 to slide in the slide groove 34, and pulls the rear end of the sensor harness to move. Since the harness at the rear end of the first clamping fixture 32 is inevitably bent during use, it is easily damaged during the pulling process. Therefore, in order to avoid damage, the sensor harness can have a certain margin in the slide groove 34. During the movement of the electromagnetic navigation sensor, only the sensor harness in the slide groove 34 moves, and the harness at the rear end of the first clamping fixture 32 remains stationary.

[0095] To achieve this goal, Figures 3 to 5 As shown, in this embodiment, a winding spring 7 is also provided on the first clamping fixture 32. 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. The rear end of the winding spring 7 is fixed to the handle fixing assembly 3. The winding spring 7 is used for winding the sensor harness.

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

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

[0098] Specifically, the winding spring 7 is a spring, and the sensor harness can be wound on the winding spring 7 according to the spiral direction of the winding spring 7 after passing through the slider 35. After winding, the sensor harness passes through the first clamping fixture 32 and is pressed and fixed on the first clamping fixture 32 by a pressure plate and other structures. The front end of the winding spring 7 is fixedly connected to the slider 35, and the rear end is fixed on the first clamping fixture 32. The slider 35 stretches the winding spring 7 during the linear movement in the slide groove 34.

[0099] First, when the ultrasonic emitting part at the front end bends, the slider 35 slides in the slide groove 34 in a linked manner, and at the same time, the slider 35 pulls the winding spring 7 to deform and obtain elastic potential energy. When the ultrasonic emitting part recovers, the winding spring 7 can pull the slider 35 to reset. Secondly, since the sensor harness is wound on the winding spring 7, when the winding spring 7 is stretched, the sensor harness wound on the winding spring 7 is deformed. Since the maximum stretching amount of the winding spring 7 is greater than the maximum sliding stroke of the slider 35 in the slide groove 34, the maximum deformable amount of the sensor harness is also greater than the maximum sliding stroke of the slider 35. Therefore, during the sliding process of the slider 35, no pulling is generated on the rear end of the sensor harness.

[0100] like Figure 5As shown, in order to reasonably utilize the space, the winding spring 7 in this embodiment is arranged in the slide groove 34, and the fixing part is a fixed card slot opened at the rear end of the slide groove 34. A fixing plate is detachably fixed on the fixed card slot, and the fixing plate is used to press the sensor harness into the fixed card slot.

[0101] Specifically, in this embodiment, the rear end of the sensor harness is spirally wound on the winding spring 7 and then extends out of the first clamping fixture 32 through the fixed card slot. The portion of the sensor harness on the fixed card slot is pressed and fixed by the fixing plate. During the movement of the electromagnetic navigation sensor, the portion of the sensor harness extending out of the first clamping fixture 32 remains stationary, and only the portion wound on the winding spring 7 stretches as the winding spring 7 stretches, 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, Figure 4 As shown, 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 passing groove 80 is provided on the fixing seat 8, and the wire passing groove 80 is used 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 the fixed slot after being wound on 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 by a locking structure such as a locking screw, which is not limited in this embodiment.

[0104] In one embodiment, in order to facilitate the fixing of the rear end of the winding spring 7, a spring hole is provided on the fixing seat 8, and the spring hole is located below the wire slot 80. The rear end of the winding spring 7 is inserted into the spring hole and locked and fixed. Specifically, in this embodiment, a threaded hole is provided on the fixing seat 8 along the radial direction of the spring hole, and a locking screw is threadedly connected in the threaded hole. The locking screw can press the rear end of the winding spring 7 into the spring hole. Of course, those skilled in the art can also adopt other methods for fixing, and the above description is not restrictive.

[0105] like Figure 4 As shown, in order to control the stretching and contraction movement of the winding spring 7 within a set range, a guide column 81 is provided at the front end of the fixing seat 8 in this embodiment, and the spiral portion of the winding spring 7 is sleeved on the guide column 81. The stretching and contraction movement of the winding spring 7 are both performed along the guide column 81, and the guide column 81 can prevent the winding spring 7 from being deviated during the movement.

[0106] On the basis of the above embodiment, in order to reduce the inner diameter of the first sensor protection tube 2, the sensor wire harness can be stripped. Specifically, the portion of the sensor wire harness corresponding to the first sensor protection tube 2 can be stripped, thereby reducing the diameter of the portion of the sensor wire harness, thereby reducing the diameter requirement of the first sensor protection tube 2. Similarly, the portion of the sensor wire harness located on the second sliding channel 36, the slide groove 34, the slider 35 and the winding spring 7 can also be stripped. The portion of the sensor wire harness fixed to the rear end of the first clamping fixture 32 can retain the wire skin, thereby improving the structural strength.

[0107] In one embodiment, the sensor harness is directly arranged in the first sliding channel 200 and the second sliding channel 36. Since the sensor harness will slide relative to the sliding channel, in order to better protect the harness, in another embodiment, as shown in FIG. Figure 7 As shown, the protection tube tooling also includes a second sensor protection tube 10, which is slidably arranged in the first sliding channel 200. A third installation channel is arranged in the second sensor protection tube 10, and the third installation channel is used to install the electromagnetic navigation sensor.

[0108] In this embodiment, during installation, the electromagnetic navigation sensor can be inserted into the third installation channel of the second sensor protection tube 10 in advance, and the front end of the electromagnetic navigation sensor can extend out of the second sensor protection tube 10. The sensor harness after peeling is accommodated in the third installation channel, and the sensor harness can be fixed with the second sensor protection tube 10 by glue. Then, the electromagnetic navigation sensor and the second sensor protection tube 10 are inserted into the first sliding channel 200 of the first sensor protection tube 2 together. When the electromagnetic navigation sensor moves with the ultrasonic transmitter, the second sensor protection tube 10 will slide linearly in the first installation channel 100, and the second sensor protection tube 10 plays a role in protecting the sensor harness.

[0109] like Figure 5 As shown, in one embodiment, the rear end of the first sensor protection tube 2 extends to the vicinity of 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 slide groove 34 through the third sliding section 363, and is finally fixed on the slider 35. The rear of the stripped wire harness on the sensor harness extends out of the rear end of the second sensor protection tube 10 and passes through the slider 35 before being wound around the winding spring 7, and the part of the sensor harness with the wire skin passes through the first clamping fixture 32 and is fixed on the first clamping fixture 32.

[0110] To facilitate the installation of the sensor harness on the slider 35, Figure 4As shown, in this embodiment, a mounting groove 350 is provided on the slider 35 , and the mounting groove 350 penetrates the slider 35 along the sliding direction of the slider 35 , and the mounting groove 350 is used to fix the sensor 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 installation groove 350 includes a first groove body 3500 and a second groove body 3501 arranged from front to back. The width of the first groove body 3500 is greater than the width of the second groove body 3501. The first groove body 3500 is used to accommodate the second sensor protection tube 10, and the second groove body 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 slot body 3501 and is wound around the winding spring 7, parts of the sensor harness located on the second slot body 3501 and the winding spring 7 are partially removed from the wire sheath.

[0113] Since the second sensor protection tube 10 will also bend when the ultrasonic emitting portion bends, in order to better protect the second sensor protection tube 10, as shown in FIG. Figure 1b As shown, in this embodiment, the front end of the first sensor protection tube 2 extends out of the front end of the protection long tube 1 and forms an extension section 201. At least a portion of the extension section 201 is configured as a transition section 202. The transition section 202 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 out of the front end of the first sensor protection tube 2. A spiral transition section 202 is provided on the extension section 201 of the first sensor protection tube 2 extending out of the protection long tube 1, and 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 section 201, and the transition section 202 can be bent at any angle without being broken, so that the extension section 201 of the first sensor protection tube 2 can be prevented from being broken while protecting the second sensor protection tube 10.

[0115] like Figure 6 As shown, in order to further protect the first sensor protection tube 2, the protection tube tooling in this embodiment also includes a coated stent 9, which is sleeved and fixed on the front end of the protection long tube 1, and the first sensor protection tube 2 is inserted into the coated stent 9. When the ultrasonic emission part is bent back, the coated stent 9 can prevent the first sensor protection tube 2 from separating from the bent part, causing damage such as breaking of the first sensor protection tube 2. In this embodiment, the coated stent 9 can adopt a cardiovascular stent in the relevant technology, and its specific structure is not limited in this embodiment.

[0116] In this embodiment, the length of the stent graft 9 should satisfy the following conditions: the front end of the stent graft 9 is sleeved on the curved portion of the intraoperative ultrasound probe, and the front end of the stent graft 9 is bent during the bending of the curved portion. By sleeved the front end of the stent graft 9 on the curved portion, the first sensor protection tube 2 can be fitted to the curved portion of the intraoperative ultrasound probe as much as possible, thereby avoiding the first sensor protection tube from breaking during the bending process. In this embodiment, the transition section 202 of the first sensor protection tube 2 extends out of the front end of the stent graft 9. The transition section 202 of the first sensor protection tube 2 extends out of the front end of the stent graft 9.

[0117] To facilitate the installation of the stent graft 9 on the protective long tube 1, as shown in FIG. Figure 6 and Figure 7 As shown, the coated stent 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 on the front end of the protective long tube 1 , the small diameter section 91 is extended from the front end of the extension section, and the transition section 202 is extended from the small diameter section 91 .

[0118] In another embodiment, in order to protect the first sensor protection tube 2, the membrane support 9 can be replaced by a heat shrink tube or other tubular structures that have a certain supporting capacity and can shrink.

[0119] In one embodiment, the protective long 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 long tube 1 is made of stainless steel. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Within the spirit and principle of the present invention, any modification, equivalent substitution, improvement, etc., shall be included in the protection scope of the present invention.

Claims

1. A protective tube tooling for an intraoperative ultrasound probe, characterized in that: include: A protective long tube, wherein a first installation channel is provided in the protective long tube, the first installation channel is used to install an intraoperative ultrasound probe, a first sensor protective tube is fixedly provided in the protective long tube, a first sliding channel is established in the first sensor protective tube, and the first sliding channel is used to accommodate a sensor harness; A handle fixing assembly, wherein a second mounting channel is provided in the handle fixing assembly, the handle fixing assembly is fixedly arranged at the end of the protective long tube, the second mounting channel is communicated with the first mounting channel, and the second mounting channel is used for the front end of the intraoperative ultrasound probe to pass through and accommodate and fix the probe handle end of the intraoperative ultrasound probe; The handle fixing assembly is provided with a slide groove, a sliding block is provided in the slide groove, the slide groove is communicated with the first sliding channel, and the sliding block is used to fix the sensor harness.

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

3. The protective tube tooling for an intraoperative ultrasound probe according to claim 2, characterized in that: The handle fixing assembly comprises a connecting member, a first clamping fixing member and a second clamping fixing member; The connecting piece is fixedly sleeved on the end of the protective long tube, the first clamping fixture and the second clamping fixture are relatively distributed, and the first clamping fixture and the second clamping fixture are used to clamp and fix the probe handle end of the ultrasound probe during surgery; The sliding groove is arranged on the first clamping fixture or the second clamping fixture.

4. The protective tube tooling for an intraoperative ultrasound probe according to claim 3, characterized in that: The first clamping fixture comprises a fixed section and a movable section, the fixed section is configured as a gripping section, a first end of the fixed section is fixedly connected to the upper side of the connecting member, and a second end of the fixed section is hinged to the first end of the movable section; The first end of the second clamping fixture is hinged to the lower side of the connecting member; The second end of the movable section and the second end of the second clamping fixture are detachably fixedly connected via a locking member; The slide groove is arranged on the movable section, 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 connecting member, 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 tooling for an intraoperative ultrasound probe according to claim 4, characterized in that: The end of the first sensor protection tube extends to the third sliding section through the first sliding section and the second sliding section; When the movable segment is at the 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 tooling for an intraoperative ultrasound probe according to claim 4, characterized in that: The locking member includes a first buckle and a second buckle, the first buckle is fixed to the second end of the movable section, the second buckle is fixed to the second end of the second clamping fixture, and the first buckle and the second buckle are buckled in connection.

7. The protective tube tooling for an intraoperative ultrasound probe according to claim 3, characterized in that: The first clamping fixture is also provided with a winding spring and a fixing portion, 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 to the first clamping fixture; The fixing portion is located at the rear end of the winding spring, the winding spring is used to wind the sensor harness, and the fixing portion is used to fix the sensor harness; The maximum stretching amount of the winding spring is greater than the maximum sliding stroke of the slider in the sliding groove.

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

9. The protective tube tooling for an intraoperative ultrasound probe according to claim 1, characterized in that: The protection tube tooling also includes a second sensor protection tube, which is slidably arranged in the first sliding channel. A third installation channel is arranged in the second sensor protection tube, and the third installation channel is used to install the electromagnetic navigation sensor.

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

11. The protective tube tooling for an intraoperative ultrasound probe according to claim 1, characterized in that: The front end of the first sensor protection tube extends out of the front end of the long 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 tooling for an intraoperative ultrasound probe according to claim 1, characterized in that: The protection tube tooling also includes a film-covered bracket, which is sleeved and fixed on the front end of the protection long tube, and the first sensor protection tube is inserted into the film-covered bracket.