Minimally invasive scissors for subcutaneous dissection

Abstract

The minimally invasive scissors for subcutaneous dissection comprise a needle tube and visual equipment, the minimally invasive scissors are provided with an opening and closing direction arranged in the radial direction of the needle tube, and elastic pieces oppositely arranged in the opening and closing direction are arranged in the needle tube; the elastic piece is synchronously and movably arranged in the length direction of the needle tube, blades can be arranged on the inner side and the outer side of the head end of the elastic piece in the opening and closing direction, and the head end of the elastic piece is arranged to be suitable for stretching out of the first end of the needle tube and opening in the opening and closing direction. According to the minimally invasive scissors for subcutaneous dissection, a minimally invasive opening can be formed in the skin, the knife edge with the dissection function is arranged in the minimally invasive opening in cooperation with a needle tube, subcutaneous dissection is achieved, subcutaneous dissection is efficiently completed through contraction of the head end of the elastic piece and cooperation with the two-way knife edge, and visual equipment can be connected with an Android / Windows system. Direct-visualization rapid operation is realized; and a water and gas injection pipeline is arranged, so that a clear observation view is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of subcutaneous peeling instruments, and in particular to minimally invasive scissors used for subcutaneous peeling of scars and facial wrinkle removal and facelift surgeries. Background Art

[0002] Subcutaneous dissection, as a delicate soft tissue separation technique, is a fundamental operation in plastic surgery, burn repair, and skin tumor resection. Its core purpose is to create a controllable separation plane between the skin and deep fascia or muscle tissue to free flaps, loosen scar adhesions, or provide a bed for grafts.

[0003] In the prior art, surgical instruments for subcutaneous dissection generally include scissors and subcutaneous dissection needle knives. Scissors require a larger operating space and correspondingly need to form a larger incision on the skin. Although subcutaneous dissection needle knives can be operated under minimally invasive conditions, the dissection range is narrow and the dissection efficiency is low.

[0004] Therefore, in order to solve the above problems, the present invention proposes a minimally invasive scissors for subcutaneous peeling that can efficiently peel under minimally invasive conditions. Summary of the Invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a minimally invasive scissors for subcutaneous dissection.

[0006] According to one purpose of the present invention, the present invention provides a minimally invasive scissors for subcutaneous dissection, comprising a needle tube, wherein the minimally invasive scissors are provided with an opening and closing direction arranged along one of the radial directions of the needle tube, and elastic members are provided in the needle tube and are relatively arranged along the opening and closing direction. The elastic members are arranged to move synchronously along the length direction of the needle tube, and a blade is provided at the head end of the elastic member on the outside of the opening and closing direction. The head end of the elastic member is adapted to extend through the first end of the needle tube and open along the opening and closing direction.

[0007] Preferably, the outer edge of the blade is located inside the outer edge of the elastic member.

[0008] Preferably, blades are provided on both sides of the head end of the elastic member in the opening and closing direction, wherein the blades located on the inner side of the elastic member are staggered in the opening and closing direction.

[0009] Preferably, the head ends of the elastic members extend toward the elastic member on the opposite side to form cutting portions, and the cutting portions on the elastic members are sequentially arranged on the inner side of the needle tube in the longitudinal direction of the needle tube.

[0010] On the inner side of the needle tube, an elastic body is arranged above the head end of the elastic member, the relative outer side of the elastic body is arranged close to the inner wall of the needle tube, and the relative inner side of the elastic body reserves a gap between the opening and closing directions, and the cutting part is located in the gap.

[0011] Preferably, the cutting part is a first cutting part and a second cutting part, and the first cutting part and the second cutting part are respectively arranged on the two elastic parts arranged opposite to each other. In the length direction of the needle tube, the first cutting part is located in front of the second cutting part, and a cutting groove matching the second cutting part is provided on the elastic part corresponding to the first cutting part.

[0012] Preferably, a blade is provided on the inner side of the cutting groove, and the blade on the second cutting portion matches the blade on the cutting groove.

[0013] Preferably, the outer edges of the head ends of the elastic members are arc-shaped, and the blades cover the outer edges of the head ends of the elastic members.

[0014] Preferably, the minimally invasive scissors further include:

[0015] A gripping body, the gripping body being arranged at the second end of the needle tube, the gripping body being provided with a pressable operating member, the operating member being driven to connect with the elastic member;

[0016] The radial dimension of the needle tube is 0.6 to 2 mm.

[0017] Preferably, the minimally invasive scissors further include: a micro-visual endoscope, the micro-visual endoscope being hidden in the needle tube, the micro-visual endoscope being located in the gap between the opposite elastic members, and the micro-visual endoscope being configured to follow the movement of the elastic member so as to be exposed when the head end of the elastic member extends out of the first end of the needle tube;

[0018] The gripping body is provided with a video external connection component, and the micro visualization endoscope is electrically connected to the video external connection component.

[0019] Preferably, the minimally invasive scissors further include: a water injection and drainage piece, and the water injection and drainage piece and the miniature visual endoscope are both detachably connected to the needle tube.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The minimally invasive scissors for subcutaneous peeling can form a minimally invasive opening on the skin, and cooperate with a needle tube to place a blade with peeling function into the minimally invasive opening to achieve subcutaneous peeling. The subcutaneous peeling is completed efficiently by contracting the head end of the elastic member and cooperating with the bidirectional blade.

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the entirety (in the unfolded state) of a first embodiment of the minimally invasive scissors for subcutaneous dissection according to the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the head end of the middle elastic member;

[0025] Figure 3 This is a schematic diagram of the head end (in the retracted state) of the elastic member in the first embodiment of the minimally invasive scissors for subcutaneous dissection according to the present invention;

[0026] Figure 4 This is a schematic diagram of the entirety (in the unfolded state) of a second embodiment of the minimally invasive scissors for subcutaneous dissection according to the present invention;

[0027] Figure 5 for Figure 4 Schematic diagram of the head end of the middle elastic member;

[0028] Figure 6 This is a schematic diagram of the entire minimally invasive scissors for subcutaneous dissection according to the present invention in a folded state;

[0029] Figure 7 This is a schematic diagram of the head end (in the retracted state) of the elastic member in the second embodiment of the minimally invasive scissors for subcutaneous dissection described in the present invention. DETAILED DESCRIPTION

[0030] The following description is intended to fully illustrate the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are intended to be exemplary only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0031] Example 1

[0032] See also Figure 1-3The present invention provides a technical solution: a minimally invasive scissors for subcutaneous dissection, comprising a needle tube 100, an opening and closing direction A arranged along one radial direction of the needle tube 100 being provided on the minimally invasive scissors, an elastic member 200 arranged relatively along the opening and closing direction A being provided in the needle tube 100, the elastic member 200 being arranged to move synchronously along the length direction of the needle tube 100, a blade 300 being provided on the outer side of the head end of the elastic member 200 in the opening and closing direction A, the head end of the elastic member 200 being adapted to extend through the first end of the needle tube 100 and open along the opening and closing direction A.

[0033] When in use, the minimally invasive scissors are provided with at least two working states, namely a folded state and an unfolded state. When the minimally invasive scissors are in the folded state, the head end of the elastic member 200 is hidden in the needle tube 100. When the minimally invasive scissors are in the unfolded state, the head end of the elastic member 200 is exposed outside the needle tube 100, and the head end of the elastic member 200 is opened in the opening and closing direction A. During the switching process between the two working states, the minimally invasive scissors complete the peeling of the tissue.

[0034] To improve the stripping efficiency, further, the head end of the elastic member 200 is provided with blades 300 on both sides in the opening and closing direction A, and the blades 300 located on the inner side of the elastic member 200 are staggered in the opening and closing direction A.

[0035] In order to prevent the blade 300 arranged at the head end of the elastic member 200 from scratching the inner wall of the needle tube 100 during the opening and closing process of the elastic member 200, thereby causing damage to the blade 300, further, in the opening and closing direction, the outer edge of the blade 300 is located on the inner side of the outer edge of the elastic member 200. When in use, the outer edge of the elastic member 200 directly contacts the inner wall of the needle tube 100, and the blade 300 does not contact the inner wall of the needle tube 100, thereby avoiding damage to the blade 300. Specifically, in this embodiment, in the opening and closing direction, the outer edge of the blade 300 is tilted inward.

[0036] Example 2

[0037] See also Figure 4-7 In this embodiment, based on the above-mentioned embodiment 1, in order to ensure the cutting effect of the blade 300 on the tissue, the head end of the elastic member 200 further extends toward the elastic member 200 on the opposite side to form a cutting portion 201. On the inner side of the needle tube 100, the cutting portions 201 on the elastic member 200 are sequentially arranged in the length direction of the needle tube 100. By setting the cutting portion 201, when in use, the cutting portion 201 can follow the opening and closing of the elastic member 200, thereby being able to cooperate with the blade 300 to separate the tissue.

[0038] Furthermore, on the inner side of the needle tube 100, an elastic body 202 is provided above the head end of the elastic member 200, and the relative outer side of the elastic body 202 is provided close to the inner wall of the needle tube 100, and a gap 203 is reserved on the relative inner side of the elastic body 202 between the opening and closing directions A, and the cutting portion 201 is located within the gap 203. By providing the gap 203 between the elastic members 200, the size of the elastic body 202 can be reduced to improve the flexibility of the stripping operation, and at the same time, the cutting portion 201 can be dislocated in the opening and closing direction A to achieve a tissue separation effect.

[0039] Furthermore, the cutting portion 201 is divided into a first cutting portion 2011 and a second cutting portion 2012. The first cutting portion 2011 and the second cutting portion 2012 are respectively arranged on two oppositely arranged elastic members 200. In the length direction of the needle tube 100, they are arranged one in front of the other in the back relative to the head end of the elastic member 200. The first cutting portion 2011 is located in front of the second cutting portion 2012. The elastic member 200 corresponding to the first cutting portion 2011 is provided with a matching second cutting portion 2012. Cutting groove 204. By adding cutting groove 204, the second cutting portion 2012 can be embedded in the inner side of the cutting groove 204 when it is retracted to the inner side of the needle tube 100, so that the cutting portion 201 can be set to a larger size in the opening and closing direction A. At the same time, the cutting portion 201 has a longer movable path in the opening and closing direction A, so that the cutting portion 201 can cooperate with the blade 300 to peel off the tissue, wherein the inner side of the cutting groove 204 can also be provided with a blade 300. When the second cutting portion 2012 is embedded in the cutting groove 204, the blades 300 on the two are in contact with each other.

[0040] Furthermore, the depth of the cutting groove 204 gradually decreases away from the center, that is, there is a smooth transition between the inner side of the cutting groove 204 and the inner side of the elastic member 200, thereby avoiding affecting the stability of the elastic member 200 structure due to the addition of the cutting groove 204.

[0041] The outer edges of the head end of the elastic member 200 are all arc-shaped, and the blade 300 covers the outer edges of the head end of the elastic member 200, so that when in use, in addition to the blades 300 arranged on the opposite sides of the elastic member 200 to peel off the tissue, the blade 300 at the top of the head end of the elastic member 200 can also peel off the tissue.

[0042] Example 3

[0043] Based on the above embodiments, see Figure 1 、 4 and 6, the minimally invasive scissors further comprising:

[0044] The holding body 400 is provided at the second end of the needle tube 100. The holding body 400 is provided with an operating member 500, and the operating member 500 drives the elastic member 200. By providing the holding body 400 and the operating member 500, it is convenient for the operator to operate the minimally invasive scissors. In this embodiment, the operating member 500 is a pressable operating member 500. The mechanism composed of the holding body 400, the operating member 500 and the elastic member 200 is the same as the structure of the existing abdominal wall suturing device. For example, the structure of an abdominal wall suturing device disclosed in the Chinese invention patent with publication number CN215018191U discloses a handle, a push plate and claws.

[0045] The minimally invasive scissors are used in minimally invasive subcutaneous dissection surgery. The minimally invasive needle port size is 1-2 mm. Due to limited operating space, preferably, the radial size of the needle tube 100 is 0.6 to 2 mm.

[0046] For a more intuitive observation of the peeled tissue, see Figure 2 and 5 , the minimally invasive scissors also include:

[0047] A micro-visual endoscope 600, which is hidden in the needle tube 100 and located in the gap 203 between the opposite elastic members 200;

[0048] The micro visual endoscope 600 is configured to follow the movement of the elastic member 200 so as to be exposed when the tip of the elastic member 200 extends out of the first end of the needle tube 100. Preferably, the micro visual endoscope 600 is arranged toward the center of the line connecting the tip of the elastic member 200.

[0049] The holding body 400 is provided with a video external component 700, and the micro visualization endoscope 600 is electrically connected to the video external component 700. The video external component 700 is used to receive and display the output signal of the micro visualization endoscope 600 and display images. The video external component 700 and the micro visualization endoscope 600 constitute a visualization device.

[0050] Furthermore, the micro-visual endoscope 600 and the needle tube 100 are detachably connected, that is, the micro-visual endoscope 600 is optional;

[0051] In order to improve the functionality of the minimally invasive scissors, the minimally invasive scissors also include: a water injection and drainage component detachably connected to the needle tube 100, that is, the water injection and drainage component is optional, wherein the water injection and drainage component is not shown in the figure.

[0052] In one embodiment, the micro visualization endoscope 600, video external component 700 and water injection and drainage component are all existing technologies. The micro visualization endoscope 600 and video external component 700 are the same as the structure with visualization function in the disposable visual transnasal gastrointestinal nutrition tube in the existing technology, which can be placed quickly by direct visualization and operated at the bedside without the assistance of X-ray or gastroscopy. It is also equipped with water and air injection pipelines to maintain a clear observation field of view. The catheter is designed with side holes to avoid blockage. In addition, no host is required and it is compatible with Android / Windows systems.

[0053] In another embodiment, the elastic member (200), the blade (300) and the end of the needle tube (100) are bent toward the same side perpendicular to the opening and closing direction, that is, the needle tube can be straight or curved, corresponding to the straight shear and curved shear in the prior art.

[0054] In summary, the minimally invasive scissors for subcutaneous peeling can form a minimally invasive opening on the skin, and the blade 300 with peeling function is placed into the minimally invasive opening with the needle tube 100 to achieve subcutaneous peeling. The subcutaneous peeling is completed efficiently by the contraction of the head end of the elastic member 200 and the cooperation with the bidirectional blade 300.

[0055] By arranging a miniature visual endoscope 600 on the needle tube 100, the minimally invasive scissors have a visual function, which enables subcutaneous separation to be performed under direct vision to avoid tissue damage;

[0056] In addition, the minimally invasive scissors are flexible and convenient to operate, and have strong stability. A water injection and drainage component can be provided on the needle tube 100 to enable it to have water injection and drainage functions.

[0057] The embodiments described above are only used to illustrate the technical ideas and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. The scope of the patent application of the present invention cannot be limited by these embodiments alone. That is, any equivalent changes or modifications made according to the spirit disclosed by the present invention still fall within the patent scope of the present invention.

Claims

1. A minimally invasive scissors for subcutaneous dissection, characterized in that: include: A needle tube (100), an opening and closing direction (A) arranged along one radial direction of the needle tube (100) is provided on the minimally invasive scissors, an elastic member (200) arranged relatively along the opening and closing direction (A) is provided in the needle tube (100), the elastic member (200) is arranged to move synchronously along the length direction of the needle tube (100), a blade (300) is provided on the outer side of the head end of the elastic member (200) in the opening and closing direction (A), and the head end of the elastic member (200) is configured to extend through the first end of the needle tube (100) and open along the opening and closing direction (A).

2. A minimally invasive scissors for subcutaneous dissection according to claim 1, characterized in that: The outer edge of the blade (300) is located inside the outer edge of the elastic member (200).

3. The minimally invasive scissors for subcutaneous dissection according to claim 1, characterized in that: The head end of the elastic member (200) is provided with blades (300) on both sides in the opening and closing direction (A), wherein the blades (300) located on the inner side of the elastic member (200) are staggered in the opening and closing direction (A).

4. The minimally invasive scissors for subcutaneous dissection according to claim 3, characterized in that: The head ends of the elastic members (200) are extended toward the elastic member (200) on the opposite side to form cutting portions (201), which are sequentially arranged on the inner side of the needle tube (100) relative to the cutting portions (201) on the elastic member (200) in the length direction of the needle tube (100); An elastic body (202) is provided on the inner side of the needle tube (100) above the head end of the elastic member (200), the relative outer side of the elastic body (202) is provided close to the inner wall of the needle tube (100), and a gap (203) is reserved on the relative inner side of the elastic body (202) between the opening and closing directions (A), and the cutting portion (201) is located within the gap (203).

5. The minimally invasive scissors for subcutaneous dissection according to claim 4, characterized in that: The cutting portion (201) is divided into a first cutting portion (2011) and a second cutting portion (2012). The first cutting portion (2011) and the second cutting portion (2012) are respectively arranged on two elastic members (200) arranged opposite to each other. In the length direction of the needle tube (100), the first cutting portion (2011) is located in front of the second cutting portion (2012). A cutting groove (204) matching the second cutting portion (2012) is provided on the elastic member (200) corresponding to the first cutting portion (2011).

6. The minimally invasive scissors for subcutaneous dissection according to claim 5, characterized in that: A blade (300) is provided on the inner side of the cutting groove (204), and the blade (300) on the second cutting portion (2012) matches the blade (300) on the cutting groove (204).

7. The minimally invasive scissors for subcutaneous dissection according to claim 1, characterized in that: The elastic member (200), the blade (300) and the distal ends of the needle tube (100) are bent toward the same side perpendicular to the opening and closing direction.

8. The minimally invasive scissors for subcutaneous dissection according to claim 1, characterized in that: The minimally invasive scissors also include: A holding body (400), the holding body (400) being arranged at the second end of the needle tube (100), the holding body (400) being provided with a pressable operating member (500), the operating member (500) being driven to connect to the elastic member (200); The radial dimension of the needle tube (100) is 0.6 to 2 mm.

9. The minimally invasive scissors for subcutaneous dissection according to claim 8, characterized in that: The minimally invasive scissors further include: a micro-visual endoscope (600), the micro-visual endoscope (600) being hidden in the needle tube (100), the micro-visual endoscope (600) being located in a gap (203) between the opposite elastic members (200), and the micro-visual endoscope (600) being configured to follow the movement of the elastic member (200) so as to be exposed when the head end of the elastic member (200) extends out of the first end of the needle tube (100); A video external connection component (700) is provided on the holding body (400), and the micro visualization endoscope (600) and the video external connection component (700) are electrically connected.

10. The minimally invasive scissors for subcutaneous dissection according to claim 9, characterized in that: The minimally invasive scissors further include a water injection and drainage piece, wherein the water injection and drainage piece and the micro-visualization endoscope (600) are both detachably connected to the needle tube (100).

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