Trachea conforming retractor, postauricular neck side conforming retractor, and thyroid surgery kit

Abstract

The application discloses a trachea conforming hook, an ear-behind neck side conforming hook and a thyroid surgery kit. The trachea conforming hook comprises a first handle, a first hook head arranged at the distal end of the first handle, the first hook head comprises a first clamping arm, a first connecting section, a second clamping arm and an extension section connected in sequence, the first clamping arm and the second clamping arm are perpendicular to the forward direction of the first handle and are used for pushing and pulling the trachea, the first clamping arm extends from the distal end of the first handle in a first direction, the first connecting section extends from the distal end of the first clamping arm in a second direction, the second clamping arm extends from the distal end of the first connecting section in the opposite direction of the first direction, and the extension section extends from the distal end of the second clamping arm in the opposite direction of the second direction, and the bending curvature of the first connecting section is the same as that of the extension section to form parallel arc sections, and the bending direction of the second clamping arm is perpendicular to the bending direction of the first connecting section. The thyroid surgery kit can form a large enough surgical cavity for thyroid surgery and improve the surgical quality.

Description

Technical Field

[0001] This invention relates to a tracheal conformal retractor, as well as a postauricular lateral neck conformal retractor, and a thyroid surgical kit including the tracheal conformal retractor and the postauricular lateral neck conformal retractor, belonging to the field of medical device technology. Background Technology

[0002] Traditional thyroidectomy requires creating a midline notch in the anterior neck to fully expose the surgical field. However, this traditional approach leaves a significant scar in the midline of the neck, and it is difficult to treat patients with thyroid cancer and postauricular lateral cervical lymph node metastasis via the transoral approach. Currently, the postauricular lateral cervical notch is the optimal approach for thyroid cancer with concurrent neck lymph node dissection. However, specialized instruments for postauricular lateral cervical thyroid cancer surgery are still lacking in current technology.

[0003] To address the need for minimally invasive cosmetic surgery for patients with thyroid cancer and metastatic cervical lymph nodes behind the ear, alternative approaches have been forced to be used, such as axillary thyroid surgery with a surgical notch retractor or open retractor. This leads to difficulties in intraoperative exposure, and the dissection of lymph nodes in the tracheoesophageal groove is time-consuming, labor-intensive, and inefficient.

[0004] Chinese patent document CN202875405U discloses a special retractor for thyroid surgery, mainly composed of a handle, a retractor rod, and a retractor head. One end of the retractor rod is fixedly connected to the handle, and the other end is movably connected to the retractor head. The retractor rod is mainly composed of two or more telescopic rods connected in a movable manner. The retractor rod and the retractor head of this special retractor are detachably connected, and the retractor rod itself is also composed of several telescopic rods. When not in use, the retractor head can be detached from the retractor rod, and the retractor rod can be retracted to its shortest length, thus completing the disassembly and assembly of the special retractor for easy cleaning and storage. In use, after assembling the special retractor, the length of the retractor rod can be adjusted to a limited extent due to its telescopic structure, facilitating the surgeon to perform thyroid resection surgery more effectively. Furthermore, the retractor head has an inverted triangular structure, allowing the retractor head to lift the lesion and place it stably on the retractor head, facilitating the surgeon's removal. The retractor's telescopic rod is a telescopic structure consisting of a small-diameter hollow tube fitted inside a large-diameter hollow tube. After extension, the adjusted length needs to be fixed, making it very inconvenient to use. Furthermore, the connection between the two hollow tubes of different diameters is prone to detachment. In addition, the retractor lacks a clamping function, requiring two people to work together during the procedure. Summary of the Invention

[0005] The primary technical problem to be solved by this invention is to provide a tracheal conformal retractor.

[0006] Another technical problem to be solved by the present invention is to provide a conformal retractor behind the ear and on the side of the neck.

[0007] Another technical problem to be solved by the present invention is to provide a thyroid surgery kit including the above-mentioned tracheal conformal retractor and the postauricular cervical conformal retractor.

[0008] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0009] According to a first aspect of the present invention, a tracheal conformal retractor is provided, comprising:

[0010] First handle;

[0011] A first hook is located at the distal end of the first handle; the first hook includes a first clamping arm, a first connecting section, a second clamping arm, and an extension section connected end to end in sequence, the first clamping arm and the second clamping arm being perpendicular to the forward direction of the first handle for pushing and pulling the air tube;

[0012] The first clamping arm extends from the distal end of the first handle along a first direction, the first connecting segment extends from the distal end of the first clamping arm along a second direction, the second clamping arm extends from the distal end of the first connecting segment along the opposite direction of the first direction, and the extension segment extends from the distal end of the second clamping arm along the opposite direction of the second direction; furthermore, the first connecting segment and the extension segment have the same curvature to form a parallel arc segment; the curvature direction of the second clamping arm is perpendicular to the curvature direction of the first connecting segment.

[0013] Wherein, the first direction is perpendicular to the forward direction of the first handle, and the second direction is parallel to the forward direction of the first handle.

[0014] Preferably, the second clamping arm is in the shape of a three-dimensional arc, so that the projection of the second clamping arm in the first direction is an arc shape conforming to the trachea and the projection in the third direction is also an arc shape conforming to the trachea.

[0015] The third direction is perpendicular to the plane formed by the first direction and the second direction.

[0016] Preferably, the distal end of the extension is needle-shaped for piercing the skin.

[0017] Preferably, in the horizontal projection plane, the extension line of the projection of the first handle passes through the center of the projection of the second clamping arm.

[0018] Preferably, the first handle and the first hook are integrally formed.

[0019] According to a second aspect of the present invention, a conformal retractor behind the ear and on the side of the neck is provided, comprising:

[0020] second handle;

[0021] The second hook is located at the distal end of the second handle; the second hook includes a third clamping arm, a second connecting segment and a fourth clamping arm connected end to end in sequence, the third clamping arm and the fourth clamping arm being perpendicular to the forward direction of the second handle, for pushing and pulling the sternocleidomastoid muscle.

[0022] The third clamping arm extends from the distal end of the second handle along a fourth direction; the second connecting segment extends from the distal end of the third clamping arm along a fifth direction and forms a preset angle with the third clamping arm; the fourth clamping arm extends from the distal end of the second connecting segment in the opposite direction of the fourth direction and has a preset shape.

[0023] The fourth direction is perpendicular to the forward direction of the second handle, and the fifth direction is parallel to the forward direction of the second handle.

[0024] Preferably, the fourth clamping arm is shaped like a willow leaf, and the distal end of the fourth clamping arm is bent away from the second handle to form a folded portion.

[0025] Preferably, the preset included angle is 25° to 35°.

[0026] According to a third aspect of the present invention, a thyroid surgical kit is provided, comprising:

[0027] A tracheal conformal retractor includes a first handle and a first hook head, which is disposed at the distal end of the first handle and has two clamping arms perpendicular to the forward direction of the first handle, for use in thyroid surgery to retract the trachea.

[0028] A postauricular lateral cervical conformal retractor includes a second handle and a second hook head, disposed at the distal end of the second handle and having two clamping arms perpendicular to the forward direction of the second handle, for use in traction of the sternocleidomastoid muscle during thyroid surgery.

[0029] Preferably, it also includes a packaging body, which includes a base, a cover, and fillers;

[0030] The base has an arc-shaped limiting groove for accommodating the pulling part on the second handle, and the base also has a second arc-shaped limiting groove for accommodating the second clamping arm of the second hook.

[0031] The cover is fastened onto the base to form a packaging cavity for accommodating the tracheal conformal hook and the ear-neck conformal hook;

[0032] The filler is inserted into the packaging cavity to fill the remaining space of the packaging cavity while the tracheal conformal hook and the postauricular neck conformal hook are accommodated in the packaging cavity.

[0033] Compared with the prior art, the present invention has the following technical effects:

[0034] 1. During thyroid surgery, the tracheal conformal retractor and the postauricular lateral cervical conformal retractor are used together to pull the trachea and sternocleidomastoid muscle to the preset position, thereby exposing the tracheoesophageal groove surgical bed after thyroid cancer resection, expanding the surgeon's field of vision, and allowing for the clearing of the cervical lymph nodes within, avoiding obstruction of the surgical field of vision and affecting the thoroughness of the clearing, thus improving the quality of the surgery.

[0035] 2. The arc shape of the tracheal conformal retractor can conform to the shape of the trachea, and the shape of the posterior auricular and cervical conformal retractor can conform to the shape of the sternocleidomastoid muscle after traction, thereby ensuring the traction effect and avoiding slippage; this is conducive to the controllability of surgical instruments, so as to quickly and thoroughly clean the lymphatic chain on the medial side of the sternocleidomastoid muscle.

[0036] 3. Both the tracheal conformal retractor and the postauricular cervical conformal retractor have a spiral design. The two clamping arms, which are perpendicular to the direction of the handle's movement, are used to clamp the trachea or sternocleidomastoid muscle. While ensuring the traction effect, they can effectively reduce the space occupied by the tracheal conformal retractor and the postauricular cervical conformal retractor, thus facilitating the completion of surgical procedures in the narrow space under the neck flap.

[0037] 4. Due to its loop design and clever insertion path, the instrument can be inserted through a very small incision, thus reducing the size of the surgical wound and consequently reducing the risk of infection or complications. Attached Figure Description

[0038] Figure 1 This is a front view of the tracheal conformal retractor in the first embodiment of the present invention;

[0039] Figure 2(a) is a side view of the tracheal conformal retractor in the first embodiment of the present invention;

[0040] Figure 2(b) is a diagram showing the usage state of the tracheal conformal hook in the first embodiment of the present invention;

[0041] Figure 3 This is an axial view of the conformal retractor on the posterior neck side of the second embodiment of the present invention;

[0042] Figure 4 This is a side view of the conformal retractor on the posterior neck side of the second embodiment of the present invention;

[0043] Figure 5 This is an axial view of the conformal retractor on the posterior neck side of the third embodiment of the present invention;

[0044] Figure 6(a) is a side view of the conformal retractor behind the ear on the neck side in the third embodiment of the present invention;

[0045] Figure 6(b) is a schematic diagram of the structure of the conformal hook on the back of the ear and neck at another angle in the third embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the usage state of the conformal retractor behind the ear and on the side of the neck in the third embodiment of the present invention;

[0047] Figure 8(a) is a schematic diagram of the structure of the thyroid surgical kit in the fourth embodiment of the present invention;

[0048] Figure 8(b) is a schematic diagram of the position of the trachea and sternocleidomastoid muscle during thyroid surgery. Detailed Implementation

[0049] The technical content of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0050] <First Embodiment>

[0051] like Figure 1 As shown in Figure 2(a), a tracheal conformal retractor 10 provided in the first embodiment of the present invention includes a first handle 11 and a first hook head 12. The first handle 11 is cylindrical to avoid scratching the internal neck tissues. The first hook head 12 is located at the distal end of the first handle and has two clamping arms perpendicular to the forward direction of the first handle for clamping the trachea 50 during thyroid surgery.

[0052] Specifically, such as Figure 1 As shown, the first hook 12 includes a first clamping arm 121, a first connecting section 122, a second clamping arm 123, and an extension section 124 connected end to end. The first clamping arm 121 is generally straight and parallel to the centerline of the trachea during use. This first clamping arm 121 extends from the distal end of the first handle (i.e., Figure 1 End A in the middle) along the first direction (i.e. Figure 1 The first handle 11 extends along the second direction (Y direction in the figure). Since the first handle 11 extends along the second direction (Y direction in the figure), the first clamping arm 121 is perpendicular to the first handle 11 in the XY plane. In other words, during surgical operation, the direction in which the first handle 11 is perpendicular to the center line of the trachea makes the first clamping arm 121 parallel to the center line of the trachea.

[0053] The first connecting segment 122 is arc-shaped, protruding from the XY plane towards the Z direction to conform to the arc-shaped outer circumference of the trachea. This first connecting segment 122 extends from the distal end of the first clamping arm (i.e., end 1 in Figure 2(a)) along the second direction (i.e.... Figure 1 (in the Y direction). The two ends of the first connecting segment 122 ( Figure 1 Points B and C in the diagram are both located in the XY plane.

[0054] The second clamping arm 123 is a three-dimensional arc shape, meaning its projection in the X direction is an arc conforming to the trachea, and its projection in the Z direction is also an arc conforming to the trachea. In other words, the second clamping arm 123 protrudes from the XY plane in the Z direction, and from the XZ plane in the opposite direction to the Y direction. Therefore, the second clamping arm 123 protrudes from the XY plane in the Z direction and also protrudes towards the first handle, that is, into the enclosed area. Therefore, the second clamping arm 123 conforms to the outer circumferential surface of the trachea in the circumferential direction, and also conforms to the outer circumferential surface of the trachea in the longitudinal direction. This second clamping arm 123 extends from the distal end of the first connecting section (i.e., Figure 1 The C-end of the middle extends in the opposite direction to the first direction.

[0055] Extension 124 along the distal end of the second clamping arm (i.e. Figure 1 The D end of the middle bends in the opposite direction to the second direction. Furthermore, refer to... Figure 1 As shown, the first connecting segment 122 and the extension segment 124 have the same curvature (i.e., they bend towards the axis of the trachea 50 in the vertical plane), forming parallel arc segments. The bending direction of the second clamping arm (i.e., it bends away from the axis of the trachea 50 in the horizontal plane) is perpendicular to the bending direction of the first connecting segment, so that the first clamping arm 121, the first connecting segment 122, the second clamping arm 123, and the extension segment 124 together form an arc-shaped recess 120.

[0056] Points A, B, C, and D are coplanar and all lie in the XY plane. The midpoints O1 (between endpoints B and C), O2 (between endpoints C and D), and O3 (between endpoints D and E) have the same height H1 from the XY plane. This ensures that the first connecting segment 122 and the extension segment 124 have the same curvature, suitable for the shape of the trachea's outer surface. The height H2 from the midpoint O2 to the XY plane is less than or equal to the aforementioned height H1, but H1 ≥ H2 ≥ 0.2H1. Preferably, 0.8H1 ≥ H2 ≥ 0.3H1, and more preferably, 0.7H1 ≥ H2 ≥ 0.4H1. The choice of H2 is determined by comprehensively considering the trachea's diameter, the deformation of the flexible trachea under stress during surgery, and the ease of inserting the retractor into the trachea.

[0057] It is understood that in this embodiment, the first direction is perpendicular to the forward direction of the first handle, and the second direction is parallel to the forward direction of the first handle.

[0058] Therefore, in practical use, as shown in Figure 2(b), since the first connecting segment 122 and the extension segment 124 are parallel arc segments, they can be tightly fastened to the outer wall of the trachea 50. Furthermore, since the second clamping arm 123, which has a three-dimensional arc shape, conforms to the circumferential direction of the trachea and also conforms to the outer periphery of the trachea in the longitudinal direction, the trachea conformal hook provided by this invention has the following advantages: 1) The projections of the second clamping arm 123 in the XY plane and the XZ plane are both arc-shaped (i.e., three-dimensional arc-shaped), and the first connecting segment 122 and the extension segment 124 are both arc-shaped in the YZ plane, so the three together form a clamping structure for the trachea in both the Y and Z directions, thus enabling movement of the trachea in the Y direction. 1) Reliable implementation; 2) The second clamping arm 123 maintains a tight fit with the trachea in three directions. Even if the trachea deforms due to force, it can be covered by the hook, thus avoiding the problem of the soft trachea slipping out of the hook or failing to fit with the trachea; 3) The second clamping arm 123, together with the first connecting section and the extension section, forms a curved surface covering the surface of the trachea. When the trachea is pulled towards the first handle, the contact area is increased, thus making the force on the soft trachea more controllable and preventing the trachea from being unable to be pushed or pulled or from slipping out. Since the second clamping arm is bent away from the axis of the trachea 50 in the horizontal plane, it can exert moderate compression on the outer wall of the trachea 50, thereby ensuring the stability of the traction and improving the traction effect on the trachea 50.

[0059] In the above embodiment, preferably, the distal end 1241 of the extension 124 is needle-shaped for piercing the skin. In use, the tip can pierce the skin, and by rotating, the first connecting section 122 and the extension 124 can be tightly fastened to the outer wall of the trachea 50, thereby pulling the trachea 50.

[0060] In addition, such as Figure 1 As shown, preferably, in this embodiment, to reduce the risk of tracheal injury to the trachea during traction, a soft silicone sheath 1242 is fitted over the tip of the retractor. This improves the safety of the surgical procedure. It is understood that the material and shape of the silicone sheath 1242 can be adapted as needed.

[0061] In the above embodiments, preferably, as follows: Figure 1 As shown, in the horizontal projection plane, the extension line of the projection of the first handle 11 passes through the center O of the projection of the second clamping arm 123. Therefore, when the first handle 11 is used to pull the trachea 50, it can ensure that the trachea is subjected to uniform force, which facilitates the pulling of the trachea and avoids damage to the trachea 50 due to uneven force.

[0062] Furthermore, in the above embodiments, preferably, the first handle 11 and the first hook head 12 are integrally formed, which can improve the structural stability of the tracheal conformal hook 10 and avoid the subsequent secondary assembly process, thus improving production efficiency.

[0063] <Second Embodiment>

[0064] like Figure 3 and Figure 4 As shown, the posterior cervical conformal retractor 20 provided in the second embodiment of the present invention includes a second handle 21 and a second hook head 22. The second handle 21 is straight, and the second hook head 22 is located at the distal end of the second handle 21 for clamping the sternocleidomastoid muscle during thyroid surgery.

[0065] Specifically, such as Figure 3 As shown, the second hook 22 includes a third connecting section 224 and a fifth clamping arm 225 connected end-to-end. The third connecting section 224 is cylindrical, with its first end connected to the second handle 21 and its second end connected to the fifth clamping arm 225. Furthermore, as... Figure 4 As shown, the third connecting segment 224 is inclined, and in the vertical direction, the first end of the third connecting segment 224 is lower than the second end of the third connecting segment 224, so that the second handle 21 is approximately located in the middle of the fifth clamping arm 225. Furthermore, it is understood that in another embodiment, the third connecting segment 224 can be horizontally arranged, such that in the vertical direction, the first end of the third connecting segment 224 is at the same height as the second end, so that the second handle 21 is flush with the top of the fifth clamping arm 225.

[0066] like Figure 3 As shown, the fifth clamping arm 225 is curved, and this curved fifth clamping arm 225 is approximately parallel to the XZ plane. Specifically, this fifth clamping arm 225 extends from the second end of the third connecting segment 224 along the sixth direction (i.e., Figure 3 Extending in the X direction, the fifth clamping arm 225, together with the third connecting segment 224, forms a U-shaped receiving portion 220 for traction of the sternocleidomastoid muscle. In practical use, the third connecting segment 224 and the fifth clamping arm 225 are placed on both sides of the sternocleidomastoid muscle, allowing the muscle to be contained within the U-shaped receiving portion 220. By applying force to the second handle 21, traction of the sternocleidomastoid muscle is achieved.

[0067] Furthermore, in the above embodiments, preferably, the distal end of the fifth clamping arm 225 is folded outward to form a folded portion 2251, thereby facilitating the entry of the sternocleidomastoid muscle into the loop-shaped receiving portion 220 and improving the ease of traction. Specifically, in this embodiment, the distal end of the fifth clamping arm 225 is folded outward by 5mm. It is understood that in other embodiments, the degree of bending of the folded portion 2251 can be adaptively adjusted according to different needs to meet different usage scenarios.

[0068] Understandably, in the first embodiment, the bending direction of the second clamping arm 123 of the first hook head 12 is opposite to the bending direction of the first clamping arm 121. In the second embodiment, the bending direction of the third connecting section 224 of the second hook head 22 is opposite to the bending direction of the fifth clamping arm 225. This results in both the tracheal conformal hook 10 and the postauricular neck conformal hook 20 having a loop design, effectively reducing the space occupied by the tracheal conformal hook 10 and the postauricular neck conformal hook 20. Therefore, while ensuring the traction effect, it facilitates the use of the tracheal conformal hook 10 and the postauricular neck conformal hook 20 in the confined space within the neck.

[0069] Furthermore, in the above embodiments, preferably, the second handle 21 and the second hook head 22 can be integrally formed using metal material, thereby improving the structural stability of the conformal pull hook 20 behind the ear and on the side of the neck, and using the elasticity of the metal to avoid damage to the sternocleidomastoid muscle during the pushing and pulling process.

[0070] <Third Embodiment>

[0071] like Figure 5 As shown in Figure 6(a), another conformal retractor 20 for the posterior auricular and lateral neck region provided in the third embodiment of the present invention includes a second handle 21 and a second hook head 22. The second handle 21 is straight, and the second hook head 22 is located at the distal end of the second handle 21 and has two clamping arms perpendicular to the forward direction of the second handle 21, for use in clamping the sternocleidomastoid muscle during thyroid surgery (e.g., ...). Figure 7 (As shown).

[0072] Specifically, such as Figure 5As shown, the second hook 22 includes a third clamping arm 221, a second connecting segment 222, and a fourth clamping arm 223 connected end to end. The third clamping arm 221 is straight and parallel to the forward direction of the sternocleidomastoid muscle during use. This third clamping arm 221 extends from the distal end of the second handle (i.e., end E in Figure 6(a)) along a fourth direction (i.e., the X direction in Figure 6(a)). Furthermore, since the second handle 21 extends along a fifth direction (i.e., the Y direction in Figure 6(a)), the third clamping arm 221 is perpendicular to the second handle 21 in the XY plane of Figure 6(a). In other words, during surgical procedures, the second handle 21 being perpendicular to the forward direction of the sternocleidomastoid muscle allows the third clamping arm 221 to be parallel to the forward direction of the sternocleidomastoid muscle.

[0073] The second connecting segment 222 is arc-shaped. In the XY plane of Figure 6(a), the second connecting segment bends from the distal end of the third clamping arm (i.e., end F in Figure 6(a)) along the fifth direction (i.e., the Y direction in Figure 6(a)), such that the third clamping arm 221 and the second connecting segment 222 together form a preset angle α, wherein the preset angle α is an acute angle. Preferably, the preset angle α is 25° to 35°, more preferably, the preset angle α is 30°, and in other embodiments, it can also be other angles. In addition, referring to Figure 6(b), in this embodiment, the second connecting segment 222 has a notch 2221, the shape of which conforms to the bone tissue at both ends of the sternocleidomastoid muscle. In specific use, the notch 2221 is inserted from above into the bone tissue at both ends of the sternocleidomastoid muscle, so that the fourth clamping arm 223 can be placed on the inner side of the sternocleidomastoid muscle below the notch, and then the sternocleidomastoid muscle can be pulled by pulling the second handle 21.

[0074] Reference Figure 5 As shown, the fourth clamping arm 223 is willow-leaf shaped, and this willow-leaf shaped fourth clamping arm 223 is approximately parallel to the XZ plane. Specifically, the fourth clamping arm 223 extends from the distal end of the second connecting segment (i.e., end G in Figure 6(a)) in the opposite direction of the fourth direction, thereby using the third clamping arm 221, the second connecting segment 222, and the fourth clamping arm 223 to jointly form a U-shaped receiving portion 220 for traction operations on the sternocleidomastoid muscle. In specific use, as... Figure 7 As shown, the fourth clamping arm 223 and the third clamping arm 221 are used to clamp the sternocleidomastoid muscle on both sides, so that the sternocleidomastoid muscle is contained in the U-shaped receiving part 220. Thus, by applying force to the second handle 21, the traction operation of the sternocleidomastoid muscle is realized.

[0075] Furthermore, in the above embodiment, preferably, the distal end of the fourth clamping arm 223 is bent away from the second handle to form a folded portion 2231, thereby facilitating the entry of the sternocleidomastoid muscle into the loop-shaped receiving portion 220 and improving the ease of traction. Specifically, in this embodiment, the distal end of the fourth clamping arm 223 is bent 5mm away from the second handle. It is understood that in other embodiments, the degree of bending of the folded portion 2231 can be adaptively adjusted according to different needs to meet different usage scenarios.

[0076] Except for the structure described above, the rest of the structure in this embodiment is the same as that in the second embodiment, and will not be repeated here.

[0077] <Fourth Embodiment>

[0078] As shown in Figure 8(a), based on the first, second, and third embodiments, the fourth embodiment of the present invention provides a thyroid surgical kit with a U-shaped retractor, including the aforementioned tracheal conformal retractor 10, the postauricular cervical conformal retractor 20, and a packaging body 30. The tracheal conformal retractor 10 is used to retract the trachea during thyroid surgery, the postauricular cervical conformal retractor 20 is used to retract the sternocleidomastoid muscle during thyroid surgery, and the packaging body 30 is used to store the tracheal conformal retractor 10 and the postauricular cervical conformal retractor 20.

[0079] During thyroid surgery, the tracheal conformal retractor 10 and the postauricular lateral cervical conformal retractor 20 are used together to retract the trachea and sternocleidomastoid muscle to preset positions (the positions of the trachea and sternocleidomastoid muscle are shown in Figure 8(b)), thereby exposing a sufficiently large surgical cavity required for thyroid surgery. This ensures that the trachea or sternocleidomastoid muscle does not obstruct the surgeon's view, thus improving the quality of the surgery. After use, the tracheal conformal retractor 10 and the postauricular lateral cervical conformal retractor 20 can be neatly arranged and placed back into the packaging body 30 for positioning, fixation, and protection.

[0080] Specifically, in this embodiment, the packaging body 30 includes a base 301, a cover 302, and a filler 303. Specifically, the base 301 has an arc-shaped limiting groove 3011 to accommodate the pulling part 210 on the second handle 21. Correspondingly, the base 301 also has a second arc-shaped limiting groove 3012 to accommodate the second clamping arm 123. Thus, when the behind-the-ear neck conformal hook 20 is placed on the base 301, it can be limited and fixed, ensuring the stability of the behind-the-ear neck conformal hook 20. After the behind-the-ear neck conformal hook 20 is placed, the first hook head 12 of the tracheal conformal hook 10 can be engaged with the pulling part 210 on the second handle 21, thereby using the mutual engagement between the pulling part 210 and the first hook head 12 to limit and fix the tracheal conformal hook 10.

[0081] Furthermore, in this embodiment, after the tracheal conformal retractor 10 and the postauricular neck conformal retractor 20 are placed, a filler 303 is also placed on the tracheal conformal retractor 10 and the postauricular neck conformal retractor 20. In this embodiment, the filler 303 is a soft material such as foam, which can protect the tracheal conformal retractor 10 and the postauricular neck conformal retractor 20 and prevent them from deforming.

[0082] <Fifth Embodiment>

[0083] Based on the third embodiment described above, the fifth embodiment of the present invention also provides a medical device, specifically a thyroid surgery kit, including the aforementioned tracheal conformal retractor and the postauricular lateral cervical conformal retractor. Specifically, this thyroid surgery kit is used for thyroid surgery on patients. By employing the tracheal conformal retractor 10 and the postauricular lateral cervical conformal retractor 20, they can work together to retract the trachea and sternocleidomastoid muscle to preset positions, thereby facilitating the surgical procedure.

[0084] In summary, the tracheal conformal retractor, the postauricular lateral neck conformal retractor, and the thyroid surgery kit provided by this invention have the following beneficial effects:

[0085] 1. During thyroid surgery, the tracheal conformal retractor and the postauricular lateral cervical conformal retractor are used together to pull the trachea and sternocleidomastoid muscle to the preset position, thereby exposing the tracheoesophageal groove surgical bed after thyroid cancer resection, expanding the surgeon's field of vision, and allowing for the clearing of the cervical lymph nodes within, avoiding obstruction of the surgical field of vision and affecting the thoroughness of the clearing, thus improving the quality of the surgery.

[0086] 2. The arc shape of the tracheal conformal retractor can conform to the shape of the trachea, and the shape of the posterior auricular and cervical conformal retractor can conform to the shape of the sternocleidomastoid muscle after traction, thereby ensuring the traction effect and avoiding slippage; this is conducive to the controllability of surgical instruments, so as to quickly and thoroughly clean the lymphatic chain on the medial side of the sternocleidomastoid muscle.

[0087] 3. Both the tracheal conformal retractor and the postauricular cervical conformal retractor have a spiral design. The two clamping arms, which are perpendicular to the direction of the handle's movement, are used to clamp the trachea or sternocleidomastoid muscle. While ensuring the traction effect, they can effectively reduce the space occupied by the tracheal conformal retractor and the postauricular cervical conformal retractor, thus facilitating the completion of surgical procedures in the narrow space under the neck flap.

[0088] 4. Due to its loop design and clever insertion path, the instrument can be inserted through a very small incision, thus reducing the size of the surgical wound and consequently reducing the risk of infection or complications.

[0089] The tracheal conformal retractor, the postauricular lateral cervical conformal retractor, and the thyroid surgery kit provided by this invention have been described in detail above. Any obvious modifications made by those skilled in the art without departing from the essence of this invention will constitute an infringement of the patent rights of this invention and will incur corresponding legal liability.

Claims

1. A trachea conforming retractor comprising It comprises: a first handle; a first hook head arranged at the distal end of the first handle; the first hook head comprises a first clamping arm, a first connecting segment, a second clamping arm and an extension segment connected in sequence; the first clamping arm and the second clamping arm are perpendicular to the forward direction of the first handle for pushing and pulling the trachea; the first clamping arm extends from the distal end of the first handle in a first direction, the first connecting segment extends from the distal end of the first clamping arm in a second direction, the second clamping arm extends from the distal end of the first connecting segment in the opposite direction of the first direction, and the extension segment extends from the distal end of the second clamping arm in the opposite direction of the second direction; and the bending curvature of the first connecting segment and the extension segment is the same to form a parallel arc segment; the bending direction of the second clamping arm is perpendicular to the bending direction of the first connecting segment; wherein the first direction is perpendicular to the forward direction of the first handle, and the second direction is parallel to the forward direction of the first handle; the second clamping arm is in a three-dimensional circular arc shape, so that the projection of the second clamping arm in the first direction is an arc shape conforming to the trachea, and the projection of the second clamping arm in a third direction also has an arc shape conforming to the trachea; wherein the third direction is perpendicular to the plane formed by the first direction and the second direction; in the horizontal projection plane, the extension line of the projection of the first handle passes through the center of the projection of the second clamping arm; wherein the first clamping arm, the first connecting segment, the second clamping arm and the extension segment jointly enclose an arc-shaped recess for embracing multi-directional clamping of the outer wall of the trachea.

2. The trachea conforming drag hook of claim 1, wherein: the distal end of the extension segment is in the shape of a sharp needle for piercing the skin.

3. The trachea conforming drag hook of claim 1, wherein: the first handle and the first hook head are integrally formed.

4. A behind-the-ear neck-side conformable retractor, characterized in that It comprises: a second handle; a second hook head arranged at the distal end of the second handle; the second hook head comprises a third clamping arm, a second connecting segment and a fourth clamping arm connected in sequence; the third clamping arm and the fourth clamping arm are perpendicular to the forward direction of the second handle for pushing and pulling the sternocleidomastoid muscle; the third clamping arm extends from the distal end of the second handle in a fourth direction; the second connecting segment extends from the distal end of the third clamping arm in a fifth direction and forms a preset clamping angle with the third clamping arm; the fourth clamping arm extends from the distal end of the second connecting segment in the opposite direction of the fourth direction, and the fourth clamping arm is in a preset shape; wherein the fourth direction is perpendicular to the forward direction of the second handle, and the fifth direction is parallel to the forward direction of the second handle.

5. The post-auricular and lateral neck conforming drag hook of claim 4, wherein: the fourth clamping arm is in the shape of a willow leaf, and the distal end of the fourth clamping arm is bent in a direction away from the second handle to form a folded portion.

6. The post-auricular and lateral neck conforming drag hook of claim 5, wherein: the preset clamping angle is 25°-35°.

7. A kit for thyroid surgery, characterized in that It comprises: The trachea conforming retractor according to any one of claims 1-3, comprising a first handle and a first hook head provided at a distal end of the first handle and having two clamping arms in a direction perpendicular to a forward direction of the first handle for trachea traction in thyroid surgery; The behind-ear neck conforming retractor according to any one of claims 4-6, comprising a second handle and a second hook head provided at a distal end of the second handle and having two clamping arms in a direction perpendicular to a forward direction of the second handle for sternocleidomastoid muscle traction in thyroid surgery.

8. The thyroid surgery kit of claim 7, wherein Further comprising a packaging body, the packaging body comprising a base, a cover and a filling piece; The base is provided with an arc-shaped limiting groove for accommodating a traction part on the second handle, and a second arc-shaped limiting groove is further formed on the base for accommodating a second clamping arm of the second hook head; The cover is buckled on the base to form a packaging cavity for accommodating the trachea conforming retractor and the behind-ear neck conforming retractor; The filling piece is filled in the packaging cavity to fill the remaining space of the packaging cavity when the trachea conforming retractor and the behind-ear neck conforming retractor are accommodated in the packaging cavity.

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