CN215349292U - Multifunctional laryngeal knife - Google Patents

Abstract

The present disclosure relates to a multifunctional laryngeal knife, comprising: the peeling tool comprises a cutter bar, a cutter head, a peeling part, a locking part and a handle part; the knife bar comprises a straight bar and an arc-shaped bar which are connected with each other, the arc-shaped bar is used for being inserted into a throat, the straight bar is movably connected to the handle part, and the locking part is used for locking the straight bar on the handle part in an unlocking manner; the cutter head is used for cutting throat tissues to form open exposed cysts or tumors; the stripping part is inserted into the opening to poke and separate the cyst or the tumor so as to separate the cyst or the tumor from the throat tissues; the cutter head and the stripping part are movably connected to one end, far away from the straight rod, of the arc-shaped rod, so that the cutter head is provided with a cutter head working position and a cutter head non-working position which can be switched, and the stripping part is provided with a stripping part working position and a stripping part non-working position which can be switched. The multifunctional laryngeal knife has high integration level and low manufacturing cost, and can improve the success rate of the operation.

Description

Multifunctional laryngeal knife

Technical Field

The disclosure relates to the technical field of medical instruments, in particular to a multifunctional laryngeal knife.

Background

Throat diseases account for more than one third of the diseases of the ear, nose and throat department, and a considerable part of throat diseases need to be treated by an operation. For example, cysts (particularly vocal cord cysts) or benign tumors growing in the throat generally require surgical removal of the cyst or tumor from the throat tissue. Cysts and some benign tumors are mostly spherical and have clear boundaries and do not adhere to surrounding tissues.

In clinical surgery for removing cysts or tumors under the mucous membrane of the throat, two instruments are generally used, one is a laryngeal knife used for cutting throat tissues outside the cysts or tumors to form an opening, and the other is a stripper used for inserting into the opening and poking and separating the cysts or tumors to be removed from the throat tissues.

The main structures of the laryngeal knife and the stripper are basically the same, the difference is mainly reflected in the knife head and the stripper of the rod part, and the integration level of two independent instruments is poor and the manufacturing cost is increased; in addition, before performing an operation, an operator such as a doctor needs to adjust the use positions of the cutter head and the stripping part separately according to the position of the cyst or tumor so as to meet the requirement of the operation, so that the operation steps of the operation are increased, the risk of misoperation is increased, and the success rate of the operation is reduced to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multifunctional laryngeal knife which has high integration level and low manufacturing cost and can improve the success rate of the operation.

In order to achieve the above object, the present disclosure provides a multifunctional laryngeal knife, including: the peeling tool comprises a cutter bar, a cutter head, a peeling part, a locking part and a handle part; the knife bar comprises a straight bar and an arc-shaped bar which are connected with each other, the arc-shaped bar is used for being inserted into a throat, the straight bar is movably connected to the handle part, and the locking part is used for locking the straight bar on the handle part in an unlocking manner; the cutter head is used for cutting throat tissues to form open exposed cysts or tumors; the stripping part is inserted into the opening to poke and separate the cyst or tumor so as to separate the cyst or tumor from the throat tissues; the tool bit with peel off the equal movably connection in of portion the arc pole is kept away from the one end of straight-bar, so that the tool bit has tool bit operating position and tool bit inoperative position that can switch over, and makes peel off the portion and have the portion operating position that peels off that can switch over and peel off the portion inoperative position.

Optionally, the multifunctional laryngeal knife further comprises a first elastic piece, a second elastic piece, a first electromagnetic plate and a second electromagnetic plate; the first electromagnetic plate and the second electromagnetic plate are connected to one end, away from the straight rod, of the arc-shaped rod, the first electromagnetic plate is used for adsorbing the tool bit, and the second electromagnetic plate is used for adsorbing the stripping part; the cutter head is rotatably connected to the first electromagnetic plate; when the first electromagnetic plate is electrified, the cutter head can be in a non-working position which is adsorbed on the first electromagnetic plate and is opposite to the first electromagnetic plate; when the first electromagnetic plate is not electrified, the first elastic piece can apply elastic force for rotating the cutter head, so that the cutter head can rotate from the cutter head non-working position to the cutter head working position; the peeling part is rotatably connected to the second electromagnetic plate; when the second electromagnetic plate is electrified, the stripping part can be in a non-working position of the stripping part which is adsorbed on the second electromagnetic plate and is opposite to the second electromagnetic plate; when the second electromagnetic plate is not electrified, the second elastic piece can apply an elastic force for rotating the stripping part, so that the stripping part rotates from the non-working position of the stripping part to the working position of the stripping part.

Optionally, the first electromagnetic plate and the second electromagnetic plate are disposed opposite to each other and extend along the extending direction of the arc-shaped rod.

Optionally, the multifunctional laryngeal knife further comprises a power supply module, a first wire, a second wire, a first switch and a second switch; the first electromagnetic plate is electrically connected with the power supply module through the first lead, and the first switch is used for switching on or off the electrical connection between the first electromagnetic plate and the power supply module; the second electromagnetic plate is electrically connected with the power supply module through the second lead, and the second switch is used for switching on or off the electrical connection between the second electromagnetic plate and the power supply module.

Optionally, the handle portion is formed with an accommodating groove for the power supply module to be inserted, and a hollow cavity for the first wire and the second wire to pass through is formed inside the cutter bar.

Optionally, the handle portion is formed with an adjusting hole, and the straight rod is rotatably and movably arranged in the adjusting hole along the axial direction of the straight rod; a communicating opening is formed in the inner side wall of the adjusting hole, a threaded hole is formed in the handle part, one end of the threaded hole is communicated with the communicating opening, and the other end of the threaded hole is open; the locking part is constructed as a threaded rod, and the end part of the threaded rod is used for penetrating through the threaded hole to abut against the side wall of the straight rod arranged in the adjusting hole.

Optionally, the adjusting hole is configured as a through hole having a length in an axial direction of 18mm to 30mm, and the straight rod has a length in an axial direction of 180mm to 240 mm.

Optionally, the threaded rod comprises a threaded rod body and a convex block which are connected with each other, one end of the threaded rod body is used for abutting against the side wall of the straight rod arranged in the adjusting hole, the other end of the threaded rod body is connected with the convex block, and the convex block is arranged outside the threaded hole.

Optionally, the threaded rod body comprises a first section and a second section which are connected with each other along the axial direction of the threaded rod body, the first section is connected with the lug, an external thread is formed on the outer surface of the first section, and the outer surface of the second section is configured into a smooth curved surface; the threaded hole comprises a first inner wall section and a second inner wall section from one open end to one end communicated with the communication port, wherein an internal thread matched with the external thread of the first section is formed on the first inner wall section, and the second inner wall section is a smooth curved surface.

Optionally, the handle portion comprises a first handle portion and a second handle portion which are connected in an angle manner, the straight rod is movably connected to the first handle portion, and the locking portion is used for locking the straight rod to the first handle portion in an unlocking manner; the first handle portion is configured as a block-like structure and the second handle portion is configured as a prismatic post.

In the technical scheme, firstly, the cutter bar is arranged into the straight rod and the arc-shaped rod, and when the multifunctional laryngeal knife is applied to throat surgery, because the arc-shaped rod is arc-shaped, operators such as doctors can conveniently insert the arc-shaped rod into the throat which is also arc-shaped, and the requirement of surgery under the arc-shaped visual laryngoscope is met.

Secondly, the straight-bar is movably connected to the handle portion, and the locking portion is used for locking the straight-bar to the handle portion in an unlocking mode. An operator can firstly adjust the position of the straight rod relative to the handle part so that after the tool bit and the stripping part meet the requirements of the operation position and the operation direction (the operation position and the operation direction of the tool bit and the stripping part in the clinical use process are the same), the straight rod is locked on the handle part by using the locking part, the tool bit is prevented from moving relative to the handle part in the operation process, the operation stability of the multifunctional laryngeal knife is ensured, and the operation precision of the operation is improved; in addition, the operating personnel only need to adjust the cutter bar to enable the cutter head and the stripping part to meet the use requirements of the operation position and the operation direction, so that the increase of operation steps of the operation is avoided, the risk of misoperation is reduced, and the success rate of the operation is improved.

In addition, the tool bit and the stripping part are movably connected to one end, far away from the straight rod, of the arc-shaped rod, so that the tool bit and the stripping part are respectively provided with a working position and a non-working position which can be switched. For example, when the tool bit is required to be used, the tool bit can be switched to a tool bit working position, and the peeling part can be switched to a peeling part non-working position; when the peeling section is required to be used, the blade may be switched to the blade non-operating position and the peeling section may be switched to the peeling section operating position. That is to say, operating personnel can select to use tool bit or stripping off portion according to the demand of using, and the integrated level is high, has reduced the cost of manufacturing effectively.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic view of a multi-functional laryngeal knife in accordance with an embodiment of the present disclosure, wherein the cutting head is in the working position and the dissection portion is in the non-working position;

FIG. 2 is a schematic view of a portion of the multi-functional laryngeal knife of an embodiment of the present disclosure, with the dissection portion in the dissection portion operative position and the blade tip in the blade tip inoperative position;

FIG. 3 is a schematic view of the structure of the blade of the multi-functional laryngeal knife according to an embodiment of the present disclosure;

FIG. 4 is a schematic side view of a stripping section of the multi-functional laryngeal knife according to one embodiment of the present disclosure;

FIG. 5 is a schematic structural view of a latch portion according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view of a first handle portion according to an embodiment of the present disclosure.

Description of the reference numerals

1 knife bar 11 straight bar

12 arc-shaped rod 13 first electromagnetic plate

14 second electromagnetic plate 21 tool bit

211 tool bit first end 212 tool bit second end

213 inner edge 22 of the tip

221 stripped portion first end 222 stripped portion second end

223 first working surface 224 second working surface

3 locking part 31 threaded rod body

311 first section 312 second section

32 lug 4 handle portion

40 adjusting the first handle part of the hole 41

42 second handle portion

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, where the contrary is not stated, directional words such as "inner and outer" are used to refer to the inner and outer of the contours of a particular structure; the use of terms such as "first" and "second" is intended only to distinguish one element from another, and is not intended to be sequential or important.

As shown in fig. 1 to 6, the present disclosure provides a multifunctional laryngeal knife, including: a tool holder 1, a tool bit 21, a stripping part 22, a locking part 3 and a handle part 4.

The knife bar 1 comprises a straight bar 11 and an arc bar 12 which are connected with each other, the arc bar 12 is used for being inserted into a throat, the straight bar 11 is movably connected to the handle portion 4, and the locking portion 3 is used for locking the straight bar 11 to the handle portion 4 in an unlocking mode.

The cutter head 21 is used for cutting throat tissues to form open exposed cysts or tumors; the stripping portion 22 is used for inserting into the opening to poke and separate the cyst or tumor so as to detach the cyst or tumor from the throat tissue; the cutter head 21 and the stripping part 22 are movably connected to one end of the arc-shaped rod 12 far away from the straight rod 11, so that the cutter head 21 has a cutter head working position and a cutter head non-working position which can be switched, and the stripping part 22 has a stripping part working position and a stripping part non-working position which can be switched.

In the above technical solution, firstly, the knife bar 1 is set as the straight bar 11 and the arc bar 12, and in the process of applying the multifunctional laryngeal knife to throat surgery, because the arc bar 12 is arc-shaped, the doctor and other operators can conveniently insert the arc bar 12 into the throat which is also arc-shaped, and the requirements of the surgery under the arc-shaped visual laryngoscope are met.

Next, the straight rod 11 is movably connected to the handle portion 4, and the locking portion 3 is used to lock the straight rod 11 to the handle portion 4 in an unlocking manner. An operator can firstly adjust the position of the straight rod 11 relative to the handle part 4, so that after the tool bit 21 and the stripping part 22 meet the requirements of an operation position and an operation direction (the operation position and the operation direction of the tool bit 21 and the stripping part 22 in the clinical use process are the same), the straight rod 11 is locked on the handle part 4 by the locking part 3, the movement of the tool bar 1 relative to the handle part 4 in the operation process is avoided, the operation stability of the multifunctional laryngeal knife is ensured, and the operation precision of the operation is improved; in addition, the operator only needs to adjust the cutter bar 1 to make the cutter head 21 and the stripping part 22 meet the use requirements of the operation position and the operation direction, thereby avoiding increasing the operation steps of the operation, reducing the risk of misoperation and improving the success rate of the operation.

In addition, the cutting head 21 and the stripping part 22 are movably connected to one end of the arc-shaped rod 12 away from the straight rod 11, so that the cutting head 21 and the stripping part 22 respectively have an operating position and a non-operating position which can be switched. For example, when the tool bit 21 is required to be used, the tool bit 21 may be switched to the tool bit operating position, and the peeling section 22 may be switched to the peeling section non-operating position; when the peeling section 22 is required to be used, the blade 21 may be switched to the blade non-operation position, and the peeling section 22 may be switched to the peeling section operation position. That is, the operator can select the cutting head 21 or the peeling part 22 according to the use requirement, the integration degree is high, and the manufacturing cost is effectively reduced.

In an alternative embodiment, referring to fig. 1 and 2, the multi-functional laryngeal knife further comprises a first elastic member (not shown), a second elastic member (not shown), a first electromagnetic plate 13, and a second electromagnetic plate 14; first electromagnetic plate 13 and second electromagnetic plate 14 all set up in the one end that straight-bar 11 was kept away from to curved pole 12, and first electromagnetic plate 13 is used for adsorbing tool bit 21, and second electromagnetic plate 14 is used for adsorbing stripping off portion 22.

The cutter head 21 is rotatably connected to the first electromagnetic plate 13; when the first electromagnetic plate 13 is electrified, the cutter head 21 can be in a cutter head non-working position which is adsorbed on the first electromagnetic plate 13 and is opposite to the first electromagnetic plate 13; when the first electromagnetic plate 13 is not electrified, the first elastic member can apply an elastic force to the cutter head 21 to rotate the cutter head 21 from the cutter head non-working position to the cutter head working position.

The peeling section 22 is rotatably connected to the second electromagnetic plate 14; when the second electromagnetic plate 14 is charged, the peeling section 22 can be in a peeling section non-operating position that is attracted to the second electromagnetic plate 14 and faces the second electromagnetic plate 14; when the second electromagnetic plate 14 is not charged, the second elastic member can apply an elastic force to the peeling section 22 to rotate the peeling section 22 from the peeling section non-operating position to the peeling section operating position.

In the technical scheme, when the electromagnetic plate is electrified, under the action of magnetic adsorption force of the electromagnetic plate, the cutter head 21 and the stripping part 22 can overcome the elastic force of the elastic piece and are adsorbed on the electromagnetic plate so as to be in respective non-working positions; the electromagnetic plate is not electrified, the cutter head 21 and the peeling part 22 are not influenced by the magnetic attraction force of the electromagnetic plate, and the cutter head 21 and the peeling part 22 are switched from the respective non-working positions to the respective working positions under the elastic force of the elastic member. The driving structure is simple and the driving is stable.

Alternatively, the first and second elastic members may be configured as elastic torsion springs. The elastic coefficient of the elastic torsion spring can be selected according to the requirement, and the elastic torsion spring is not limited by the disclosure; in addition, the present disclosure does not limit the specific types of structures of the first elastic member and the second elastic member.

In one embodiment, referring to fig. 1 and 2, the first electromagnetic plate 13 and the second electromagnetic plate 14 are disposed opposite to each other and each extend in the extending direction of the arc rod 12. The first electromagnetic plate 13 and the second electromagnetic plate 14 are prevented from being arranged in the radial direction of the arc-shaped rod 12 to an excessive extent so as to prevent the smooth operation from being affected.

Optionally, the multifunctional laryngeal knife further comprises a power supply module (not shown), a first wire (not shown), a second wire (not shown), a first switch (not shown), and a second switch (not shown); the first electromagnetic plate 13 is electrically connected with the power supply module through a first lead, and the first switch is used for conducting or breaking the electrical connection between the first electromagnetic plate 13 and the power supply module; the second electromagnetic plate 14 is electrically connected to the power supply module through a second wire, and the second switch is used to turn on or off the electrical connection between the second electromagnetic plate 14 and the power supply module.

In this embodiment, the operator can realize different use requirements by operating the first switch and the second switch, and the degree of automation is high.

For example, in the initial state, both the first switch and the second switch are in the on state, that is, the tool bit 21 is in the state of being attracted to the first electromagnetic plate 13, and the peeling section 22 is in the state of being attracted to the second electromagnetic plate 14; when needs use tool bit 21, operating personnel makes first electromagnetic plate 13 and power module disconnection electricity connect through controlling first switch, then tool bit 21 does not receive the effect of the adsorption force of first electromagnetic plate 13, and this tool bit 21 rotates to tool bit operating position in order to satisfy the demand of using under the effect of first elastic component. When the peeling part 22 needs to be used, an operator can firstly enable the first electromagnetic plate 13 and the power supply module to be electrically connected by operating the first switch, and can rotate the cutter head 21 under the action of the auxiliary tool so as to enable the cutter head to rotate from the cutter head working position to the cutter head non-working position adsorbed on the first electromagnetic plate 13; then, the operator operates the second switch to electrically disconnect the second electromagnetic plate 14 from the power supply module, and the peeling part 22 is not affected by the attraction force of the second electromagnetic plate 14, and the peeling part 22 rotates to the peeling part operating position under the action of the second elastic member to meet the use requirement.

Alternatively, the handle portion 4 is formed with a receiving groove (not shown) for the power supply module to be inserted therein, and a hollow cavity (not shown) for the first and second wires to be inserted therethrough is formed inside the blade holder 1. Therefore, the power supply module, the first lead and the second lead are convenient to install and arrange, and the reasonability of the structural layout is improved; in addition, the hollow cavity is formed inside the cutter bar 1, so that the weight of the cutter bar 1 can be reduced, and the light weight design of the multifunctional laryngeal knife is facilitated.

In one embodiment, referring to fig. 3, the cutter head 21 comprises a first cutter head end 211 connected to the arc-shaped rod 12 and a second cutter head end 212 far away from the arc-shaped rod 12, the cutter head 21 is in a tapered sickle shape from the first cutter head end 211 to the second cutter head end 212, and the bending direction of the cutter head 21 configured in the sickle shape is consistent with the bending direction of the arc-shaped rod 12.

In this embodiment, first, the cutter head 21 has a reduced sickle shape from the first cutter head end 211 to the second cutter head end 212, that is, the cutter head 21 becomes gradually sharp from the first cutter head end 211 to the second cutter head end 212, so that the cutting operation of the cutter head 21 is facilitated, and the convenience of cutting is improved; secondly, the curved direction of the sickle-shaped blade head 21 coincides with the curved direction of the arc-shaped bars 12, facilitating the manufacturing process of the blade head 21.

Alternatively, as shown in FIG. 3, the cutting edge of cutting insert 21 is disposed on the inner edge 213 thereof. When clinical cutting is carried out, because the throat operation is remote operation, the depth of cutting that needs to control can not be too deep, and general cutting mode is from back to front or from the bottom up cuts, sets up the cutting edge at its inboard edge 213 and is more convenient for operating personnel to control the dynamics of cutting.

Alternatively, referring to fig. 4, the peeling part 22 includes a peeling part first end 221 connecting the arc-shaped bars 12 and a peeling part second end 222 far away from the arc-shaped bars 12, the peeling part second end 222 is flat and rounded, and the thickness of the peeling part 22 gradually increases from the peeling part second end 222 to the peeling part first end 221.

In this embodiment, first, the first end 221 of the peeling part 22 connected to the arc-shaped rod 12 is flat and smooth, and the second end 222 of the peeling part will not cut the cyst or tumor during the insertion into the throat tissue, so as to ensure the integrity of the cyst or tumor and facilitate the whole body to be taken out from the throat tissue; next, the thickness of the peeling part 22 gradually increases from the peeling part second end 222 to the peeling part first end 221, and during the insertion of the peeling part 22 into the throat tissue, the peeling part second end 222 is inserted first until the peeling part first end 221 is inserted, and during the insertion, the thickness gradually increases from the peeling part second end 222 to the peeling part first end 221, which facilitates the separation of the cyst or tumor from the throat tissue, and facilitates the removal of the cyst or tumor from the throat tissue.

Alternatively, as shown in fig. 4, the peeling part 22 includes a first work surface 223 and a second work surface 224 which are oppositely disposed; the first working surface 223 is adapted to engage throat tissue; the second working surface 224 is configured as an arcuate surface for conforming to an outer surface of a cyst or tumor. Through the second working face 224 that will peel off portion 22 and be used for with the surface laminating of cyst or tumour sets up to the arcwall face, and this arcwall face can be effectively constructed for curved surface laminating with cyst or tumour to improve the compactness of second working face 224 and cyst or tumour laminating, it still is favorable to carrying out the bearing in order to take out it from the throat tissue to cyst and tumour when being convenient for peel off portion 22 and stir cyst or tumour.

In other embodiments, the stripper portion 22 is generally rectangular in configuration, having a dimension in the direction of extension of the curved bar 12 of between 5mm and 10mm, and a dimension in the radial direction of the curved bar 12 of between 2.5mm and 6 mm.

Alternatively, the length of the curved rod 12 along its extension may be between 50mm and 90 mm.

Referring to fig. 5 and 6, the handle portion 4 is formed with an adjustment hole 40, and the straight rod 11 is rotatably and movably disposed in the adjustment hole 40 along an axial direction thereof; a communication opening is formed in the inner side wall of the adjusting hole 40, a threaded hole is formed in the handle portion 4, one end of the threaded hole is communicated with the communication opening, and the other end of the threaded hole is open; the locking portion 3 is configured as a threaded rod, the end of which is adapted to pass through a threaded hole to abut against the side wall of the straight rod 11 disposed in the adjustment hole 40.

In this embodiment, first, the straight rod 11 is rotatably and movably disposed in the adjusting hole 40 along the axial direction thereof, so that an operator can adjust the operation direction of the tool bit 21 and the peeling part 22 connected to the arc-shaped rod 12 by rotating the straight rod 11, and can adjust the length of the actual working part of the tool bar 1 by moving the straight rod 11 along the axial direction, thereby operating the cystic throat tumors located at different throat positions and improving the practicability of the multifunctional laryngeal knife; secondly, be formed with the intercommunication mouth on the inside wall of regulation hole 40, still be formed with the screw hole with this intercommunication mouth intercommunication on the handle portion 4, locking portion 3 constructs for the threaded rod, and this screw hole is worn to establish by the tip of threaded rod in order to support with the lateral wall that sets up straight-bar 11 in regulation hole 40 to realize the locking to straight-bar 11 (also cutter arbor 1) position, guarantee the stability of cutter arbor 1 position. The locking part 3, which is configured as a threaded rod, is simple in construction and easy to operate. However, the present disclosure does not limit the specific structure type of the locking portion 3, and the straight rod 11 may be effectively locked.

Alternatively, as shown with reference to fig. 1, 5 and 6, the adjustment hole 40 is configured as a through hole having a length in its axial direction of between 18mm and 30 mm; the length of the straight rod 11 in the axial direction thereof is between 180mm and 240 mm.

In this embodiment, by providing the adjustment hole 40 as a through hole, the convenience of adjustment of the straight bar 11 can be improved; in addition, the length of the adjusting hole 40 and the length of the straight rod 11 are not limited in the present disclosure, and can be set according to the requirement.

Referring to fig. 5 and 6, the threaded rod includes a threaded rod body 31 and a projection 32 connected to each other, one end of the threaded rod body 31 is used for abutting against the side wall of the straight rod 11 disposed in the adjusting hole 40, the other end is connected to the projection 32, and the projection 32 is disposed outside the threaded hole.

Through setting up this lug 32, operating personnel can realize thereby the tip of threaded rod body 31 and the lateral wall of the straight-bar 11 that sets up in regulation hole 40 through rotating this lug 32 and support when operating, improve the convenience of operation. The bump 32 may be configured in any suitable shape and configuration, as the present disclosure is not limited thereto. In addition, the outer surface of the projection 32 may be provided with anti-slip threads to facilitate the turning operation by the operator.

In other embodiments, referring to fig. 5 and 6, the threaded rod body 31 includes a first section 311 and a second section 312 connected to each other along an axial direction thereof, the first section 311 is connected to the projection 32, an outer surface of the first section 311 is formed with an external thread, and an outer surface of the second section 312 is configured as a smoothly curved surface; the threaded hole includes a first inner wall section formed with an internal thread for engaging with the external thread of the first section 311 and a second inner wall section configured as a smooth curved surface from the open end to the end communicating with the communication port.

In this embodiment, the first section 311 of the threaded rod body 31 is provided with an external thread, and correspondingly, the first inner wall section of the threaded bore is provided with an internal thread which cooperates with the external thread of the first section 311; under the prerequisite of guaranteeing threaded rod body 31 and screw hole cooperation compactness, need not to all set up threaded rod body 31's the whole external surface to the external screw thread, need not to all set up the inner wall of screw hole to the internal thread, reduced manufacturing's cost to also can reduce this threaded rod body 31 and wear to establish the screw hole with set up the degree of difficulty that the lateral wall of the straight-bar 11 in adjustment hole 40 supports.

Alternatively, the length of the threaded rod body 31 is between 73mm and 93mm, and the length of the first section 311 is between 10mm and 20 mm; the dimension of the projection 32 in the extending direction of the threaded rod body 31 is between 7mm and 12mm, and the dimension of the projection 32 in the radial direction of the threaded rod body 31 is between 7mm and 10 mm.

Referring to fig. 1 and 2, the handle portion 4 includes a first handle portion 41 and a second handle portion 42 connected at an angle, the straight rod 11 is movably connected to the first handle portion 41, and the locking portion 3 is used for locking the straight rod 11 to the first handle portion 41 in an unlocking manner.

In this embodiment, the handle portion 4 is provided with the first handle portion 41 and the second handle portion 42 which are connected at an angle, so that the operator can hold the handle portion conveniently, and the stability of the operation is improved.

Alternatively, the first handle portion 41 is configured as a block-like structure and the second handle portion 42 is configured as a prismatic rod. The first handle part 41 is of a blocky structure, so that the straight rod 11 and the locking part 3 can be conveniently arranged; and set up second handle portion 42 as the prism pole, the holistic weight of multi-functional larynx sword can also be reduced when being convenient for operating personnel to grip and prevent skidding, the lightweight design of this multi-functional larynx sword of being convenient for.

In one embodiment, the first handle portion 41 is configured as a rectangular block-like structure with a long dimension of between 75mm and 95mm, a short dimension of between 18mm and 30mm, and a second handle portion 42 configured as a prism stem having a length of between 60mm and 85 mm.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A multi-functional laryngeal knife, the multi-functional laryngeal knife comprising:

a knife bar (1), a knife head (21), a stripping part (22), a locking part (3) and a handle part (4);

the knife bar (1) comprises a straight rod (11) and an arc-shaped rod (12) which are connected with each other, the arc-shaped rod (12) is used for being inserted into a throat, the straight rod (11) is movably connected to the handle part (4), and the locking part (3) is used for locking the straight rod (11) to the handle part (4) in an unlocking way;

the cutter head (21) is used for cutting throat tissues to form open exposed cysts or tumors; the stripping part (22) is used for being inserted into the opening to poke and separate the cyst or tumor so as to separate the cyst or tumor from the throat tissue;

the cutting head (21) and the stripping part (22) are movably connected with the arc-shaped rod (12) away from one end of the straight rod (11), so that the cutting head (21) is provided with a cutting head working position and a cutting head non-working position which can be switched, and the stripping part (22) is provided with a stripping part working position and a stripping part non-working position which can be switched.

2. The multi-function laryngeal knife according to claim 1, characterised in that it further comprises a first elastic piece, a second elastic piece, a first electromagnetic plate (13) and a second electromagnetic plate (14);

the first electromagnetic plate (13) and the second electromagnetic plate (14) are connected to one end, away from the straight rod (11), of the arc-shaped rod (12), the first electromagnetic plate (13) is used for adsorbing the cutter head (21), and the second electromagnetic plate (14) is used for adsorbing the stripping part (22);

the cutter head (21) is rotatably connected to the first electromagnetic plate (13); when the first electromagnetic plate (13) is electrified, the cutter head (21) can be in a non-working position which is adsorbed on the first electromagnetic plate (13) and is opposite to the first electromagnetic plate (13); when the first electromagnetic plate (13) is not electrified, the first elastic piece can apply an elastic force to the cutter head (21) to enable the cutter head (21) to rotate, so that the cutter head (21) rotates from the cutter head non-working position to the cutter head working position;

the peeling part (22) is rotatably connected to the second electromagnetic plate (14); when the second electromagnetic plate (14) is charged, the peeling part (22) can be in a peeling part non-working position which is adsorbed on the second electromagnetic plate (14) and is opposite to the second electromagnetic plate (14); when the second electromagnetic plate (14) is not electrified, the second elastic piece can apply an elastic force for rotating the stripping part (22) so as to rotate the stripping part (22) from the stripping part non-working position to the stripping part working position.

3. The multi-function laryngeal knife according to claim 2, characterised in that the first electromagnetic plate (13) and the second electromagnetic plate (14) are arranged opposite each other and each extend in the direction of extension of the curved bar (12).

4. The multi-functional laryngeal blade of claim 2, further comprising a power supply module, a first wire, a second wire, a first switch, and a second switch;

the first electromagnetic plate (13) is electrically connected with the power supply module through the first lead, and the first switch is used for conducting or breaking the electrical connection between the first electromagnetic plate (13) and the power supply module;

the second electromagnetic plate (14) is electrically connected with the power supply module through the second lead, and the second switch is used for conducting or breaking the electrical connection between the second electromagnetic plate (14) and the power supply module.

5. The multifunctional laryngeal knife according to claim 4, characterised in that the handle portion (4) is formed with a receiving groove for the insertion of the power supply module, and a hollow cavity for the first and second wires to pass through is formed inside the knife bar (1).

6. The multi-function laryngeal knife according to any one of claims 1-5, characterised in that the handle portion (4) is formed with an adjustment hole (40), the straight rod (11) being rotatably and axially movably arranged in the adjustment hole (40);

a communicating opening is formed in the inner side wall of the adjusting hole (40), a threaded hole is formed in the handle part (4), one end of the threaded hole is communicated with the communicating opening, and the other end of the threaded hole is open;

the locking part (3) is constructed into a threaded rod, and the end part of the threaded rod is used for penetrating through the threaded hole to abut against the side wall of the straight rod (11) arranged in the adjusting hole (40).

7. The multifunctional laryngeal knife according to claim 6, characterised in that the adjustment hole (40) is configured as a through hole having a length in its axial direction of between 18mm and 30mm, the straight rod (11) having a length in its axial direction of between 180mm and 240 mm.

8. The multifunctional laryngeal knife according to claim 6, characterised in that the threaded rod comprises a threaded rod body (31) and a projection (32) which are connected to each other, one end of the threaded rod body (31) is used for abutting against the side wall of the straight rod (11) which is arranged in the adjustment hole (40), the other end of the threaded rod body is connected with the projection (32), and the projection (32) is arranged outside the threaded hole.

9. The multi-function laryngeal knife according to claim 8, characterised in that the threaded shank body (31) comprises a first section (311) and a second section (312) connected to each other in its axial direction, and the first section (311) is connected to the lug (32), the outer surface of the first section (311) is formed with an external thread, and the outer surface of the second section (312) is configured as a rounded curved surface;

the threaded hole comprises a first inner wall section and a second inner wall section from one end which is open to one end which is communicated with the communication port, wherein an internal thread which is matched with the external thread of the first section (311) is formed on the first inner wall section, and the second inner wall section is constructed into a smooth curved surface.

10. A multi-functional laryngeal knife according to any one of claims 1-5, characterised in that the handle portion (4) comprises a first handle portion (41) and a second handle portion (42) connected at an angle, that the straight bar (11) is movably connected to the first handle portion (41), and that the locking portion (3) is used to lock the straight bar (11) to the first handle portion (41) in an unlockable manner;

the first handle portion (41) is configured as a block-shaped structure and the second handle portion (42) is configured as a prism-shaped rod.

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