阅读说明：本技术 一种保护套、推送机构及保护套组件 (Protective sleeve, pushing mechanism and protective sleeve assembly ) 是由 陈波 葛亮 戴军 于 2019-08-29 设计创作，主要内容包括：本发明涉及一种保护套、推送机构及保护套组件,所述保护套包括外表面光滑的套管和设置于所述套管上的夹持部,所述夹持部包括第一限位件和第二限位件,所述第一限位件设置于所述套管的第一端,所述第二限位件设置于所述套管的第二端,所述第一限位件与所述第二限位件用于夹持目标部位而实现保护套的固定。本发明的优点在于,所述套管的外表面光滑且通过所述夹持部卡住目标部位,使得在利用内窥镜进行手术时,避免对组织造成损伤,同时也避免手术通路扩大而出现保护套松脱失效的情况。(The invention relates to a protective sleeve, a pushing mechanism and a protective sleeve assembly, wherein the protective sleeve comprises a sleeve with a smooth outer surface and a clamping part arranged on the sleeve, the clamping part comprises a first limiting part and a second limiting part, the first limiting part is arranged at the first end of the sleeve, the second limiting part is arranged at the second end of the sleeve, and the first limiting part and the second limiting part are used for clamping a target part to realize the fixation of the protective sleeve. The endoscope sheath has the advantages that the outer surface of the sheath is smooth, and the target part is clamped by the clamping part, so that when an endoscope is used for operation, the tissue is prevented from being damaged, and meanwhile, the situation that the protective sleeve is loosened and loses efficacy due to the expansion of an operation passage is avoided.)

1. The protective sleeve is characterized by comprising a sleeve with a smooth outer surface and a clamping part arranged on the sleeve, wherein an inner cavity extending axially through the sleeve is formed in the sleeve;

the clamping part comprises a first limiting part and a second limiting part, the first limiting part is arranged at the first end of the sleeve, and the second limiting part is arranged at the second end of the sleeve.

2. The protective sheath of claim 1, wherein the second stop comprises a first frustoconical structure having a cross-sectional diameter that tapers in a direction from the first end to the second end.

3. The protective casing of claim 2, wherein the second stop further comprises a second frustoconical structure having a cross-sectional diameter that gradually increases in a direction from the first end to the second end, and the second frustoconical structure and the first frustoconical structure are sequentially arranged in an axial direction of the sleeve from the first end to the second end while being connected to each other.

4. The protective casing of claim 3, wherein the taper of the first frustoconical structure is less than the taper of the second frustoconical structure.

5. The protective cover of claim 4, wherein a lower base diameter of the first frustoconical structure is greater than or equal to a lower base diameter of the second frustoconical structure.

6. The protective sheath of any one of claims 1-5, wherein the first end of the cannula is covered with a first elastic membrane, the first elastic membrane having at least one first slit disposed thereon, the first slit being stretched to expose the lumen when the first elastic membrane is subjected to a force, the second end of the cannula being covered with a second elastic membrane, the second elastic membrane having at least one second slit disposed thereon, the second slit being stretched to expose the lumen when the second elastic membrane is subjected to a force.

7. The protective casing of claim 6 wherein a projection of any of the second cuts and a projection of any of the first cuts do not coincide on a same plane perpendicular to an axial direction of the cannula.

8. The protective sheath of any one of claims 1-5, wherein the first retaining member comprises a proximal retaining member and at least one distal retaining member; the at least one far-end limiting piece is detachably arranged on the sleeve and is positioned between the second limiting piece and the near-end limiting piece.

9. The protective sheath of claim 8 wherein said distal stop is an annular structure having an opening and is received on said sleeve through said opening.

10. A pushing mechanism for pushing a protective casing according to any one of claims 1-9 to a target location, comprising an operating portion and a pushing rod axially interconnected.

11. The pushing mechanism as claimed in claim 10, wherein the pushing rod comprises a rod body, and a pushing member is disposed on the rod body and used for abutting against the protective sleeve;

the rod body is provided with a third end and a fourth end which are opposite, the third end is connected with the operation part, the fourth end is provided with a guide section, and the diameter of the guide section is smaller than that of the rod body.

12. A protective casing assembly comprising a pushing mechanism according to claim 10 or 11 and a protective casing according to any one of claims 1 to 9, the protective casing being mounted on a pushing rod of the pushing mechanism.

13. The protective sheath assembly of claim 12, wherein the two ends of the sleeve are provided with a baffle, the center of the baffle is provided with a through hole communicated with the inner cavity, the through hole on the baffle at the first end of the sleeve is covered with a first elastic membrane, the through hole on the baffle at the second end of the sleeve is covered with a second elastic membrane, the diameter of the rod body of the push rod is matched with the aperture of the through hole on the baffle at the first end of the sleeve, and the diameter of the guide section of the push rod is matched with the aperture of the through hole on the baffle at the second end of the sleeve.

14. The protective sheath assembly of claim 12, wherein the guide section extends out of the protective sheath from the second end of the cannula when the push rod is inserted into the protective sheath.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a protective sleeve, a pushing mechanism and a protective sleeve assembly.

Background

Arthroscopy is an optical instrument for observing the internal structure of a joint, which is used for diagnosing and treating diseases in the joint. When the arthroscope is used, a tiny incision with the size of about 0.8mm-10mm is firstly established on the skin, an operation passage is formed, then the arthroscope is inserted into the operation passage from the incision, and meanwhile, a camera shooting and displaying device is connected to the tail end of the arthroscope, so that an operator can directly observe the shape and the pathological change condition of the joint and treat diseases in the joint through a surgical instrument. At present, arthroscopic surgery becomes the standard diagnosis method and treatment technology of joint surgery, and fully reflects the development trend of modern surgical micro-traumatization.

Arthroscopes typically include a rod scope and a sheath disposed over the rod scope with threads on the outer surface of the sheath for positioning. In the operation process, the arthroscope needs to rotate or replace the operation access repeatedly so as to observe the forms and pathological changes of different areas in the joint, but in the process that the arthroscope rotates or enters and exits the operation access repeatedly, the thread on the outer surface of the arthroscope sheath can cause cutting damage to soft tissues around the operation access. In order to solve the problem, the prior medical appliance manufacturers develop a protective sleeve, the outer surface of the protective sleeve is also provided with a thread for positioning, after the operation passage is established, the protective sleeve is firstly led into the operation passage in a rotating mode, and then the arthroscope rotates in the protective sleeve or enters and exits the operation passage, so that the damage to soft tissues around the operation passage in the operation process can be reduced. However, the research and development personnel of our department find that the following defects still exist when the protective sleeve is used for arthroscopic surgery:

1. the protective sleeve is rotated in the process of guiding the protective sleeve into the operation passage, and the threads on the outer surface of the protective sleeve inevitably generate a cutting effect on soft tissues around the operation passage, so that the soft tissues are damaged.

2. When the arthroscope and the surgical instrument repeatedly pass in and out of the protective sleeve, the protective sleeve can be driven to rotate, so that soft tissues are injured.

3. The protective sheath passes through the screw thread and is fixed a position in operation route department, and need pour into normal saline during arthroscopic surgery, and histiocyte easily takes place the swelling, causes the whole swelling of soft tissue around the joint, and then leads to operation route to enlarge, the protective sheath pine takes off and loses the ability of controlling the soft tissue, influences the normal clear of operation.

Disclosure of Invention

The invention aims to provide a protective sleeve, a pushing mechanism and a protective sleeve assembly so as to reduce the damage to soft tissues around an operation passage caused by repeated entering and exiting of an endoscope and a surgical instrument in the operation process.

In order to achieve the purpose, the invention provides a protective sleeve, which comprises a sleeve with a smooth outer surface and a clamping part arranged on the sleeve, wherein an inner cavity extending axially and penetratingly is formed in the sleeve;

the clamping part comprises a first limiting part and a second limiting part, the first limiting part is arranged at the first end of the sleeve, and the second limiting part is arranged at the second end of the sleeve.

Optionally, the second stop comprises a first frustoconical structure having a cross-section that tapers in diameter in a direction from the first end to the second end.

Optionally, the second retaining member further includes a second circular truncated cone structure, and from the first end to the direction of the second end, the diameter of the cross section of the second circular truncated cone structure gradually expands, and the second circular truncated cone structure and the first circular truncated cone structure are sequentially arranged along the axial direction of the sleeve from the first end to the second end, and simultaneously the second circular truncated cone structure is connected with the first circular truncated cone structure.

Optionally, the taper of the first frustoconical structure is less than the taper of the second frustoconical structure.

Optionally, a diameter of a lower bottom of the first circular truncated cone structure is greater than or equal to a diameter of a lower bottom of the second circular truncated cone structure.

Optionally, the first end of the cannula is covered with a first elastic membrane, the first elastic membrane is provided with at least one first incision, when the first elastic membrane is stressed, the first incision is spread to expose the inner cavity, the second end of the cannula is covered with a second elastic membrane, the second elastic membrane is provided with at least one second incision, and when the second elastic membrane is stressed, the second incision is spread to expose the inner cavity.

Optionally, on the same plane perpendicular to the axial direction of the cannula, a projection of any one of the second incisions and a projection of any one of the first incisions are not coincident.

Optionally, the first limiting member includes a proximal limiting member and at least one distal limiting member; the at least one far-end limiting piece is detachably arranged on the sleeve and is positioned between the second limiting piece and the near-end limiting piece.

Optionally, the distal end limiting member is an annular structure having an opening, and is sleeved on the sleeve through the opening.

In addition, in order to achieve the above object, the present invention further provides a pushing mechanism for pushing the protective sheath to a target position, the pushing mechanism including an operating portion and a pushing rod which are axially connected to each other.

Optionally, the pushing rod comprises a rod body, and a pushing piece is arranged on the rod body and used for abutting against the protective sleeve;

the rod body is provided with a third end and a fourth end which are opposite, the third end is connected with the operation part, the fourth end is provided with a guide section, and the diameter of the guide section is smaller than that of the rod body.

In addition, in order to achieve the above object, the present invention further provides a protective sheath assembly, including the pushing mechanism and the protective sheath, where the protective sheath is sleeved on the pushing rod of the pushing mechanism.

Optionally, the sheathed tube both ends all are provided with the separation blade, separation blade central authorities all be equipped with the through-hole that the inner chamber link up is located through-hole on the separation blade of sheathed tube first end covers there is first elastic film, is located through-hole on the separation blade of sheathed tube second end covers there is second elastic film, the diameter of the body of rod of push rod with the aperture phase-match of through-hole on the separation blade of sheathed tube first end, the diameter of the guide section of push rod with the aperture phase-match of through-hole on the separation blade of sheathed tube second end.

Optionally, the guide section extends out of the protective sheath from the second end of the cannula when the push rod is inserted into the protective sheath.

Compared with the prior art, the protective sleeve, the pushing mechanism and the protective sleeve assembly have the following advantages:

the protective sleeve assembly comprises a protective sleeve and a pushing mechanism, the protective sleeve comprises a sleeve with a smooth outer surface and a clamping part arranged on the sleeve, the clamping part comprises a first limiting part and a second limiting part, the first limiting part is arranged at a first end of the sleeve, and the second limiting part is arranged at a second end of the sleeve. When the endoscope operation is carried out, firstly, an incision is made on the skin and an operation passage is established, then the protective sleeve is pushed into the operation passage by the pushing mechanism, and soft tissue at the operation passage is clamped between the first limiting part and the second limiting part. In the invention, the sleeve of the protective sleeve has a smooth outer surface, the protective sleeve is pushed to the surgical access and keeps the position in the surgical access through the clamping part, soft tissue can be held without arranging threads on the outer surface of the sleeve, and the sleeve cannot damage the soft tissue when rotating in the surgical access.

Drawings

FIG. 1 is a schematic view of a protective casing according to an embodiment of the present invention;

FIG. 2 is a schematic view of the protective sheath of FIG. 1 in the direction A;

FIG. 3 is a schematic view of the protective sheath of FIG. 1 in the direction B;

FIG. 4 is a schematic view of a distal stop on the sheath of FIG. 1;

FIG. 5 is a schematic diagram of a pushing mechanism provided in accordance with an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a protective sheath assembly according to an embodiment of the present invention.

In the figure:

1000-protective sheath;

1100-cannula;

1110-a first elastic membrane;

1111-a first incision;

1120-a second elastic film;

1121 — second cut;

1200-a grip;

1210-a first stop;

1211-proximal stop, 1212-distal stop;

1220-a second stop;

1221-a first frustum structure, 1222-a second frustum structure;

2000-a pushing mechanism;

2100-a push rod;

2110-rod body, 2120-guide section and 2130-pushing piece;

2200-operating part.

Detailed Description

To make the objects, advantages and features of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents, and the plural references "a" and "an" mean "two" or "more than three" of the referents unless the content clearly dictates otherwise. As used in this specification and the appended claims, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise, and the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The same or similar reference numbers in the drawings identify the same or similar elements.

It is a first object of the present invention to provide a protective sheath for placement at a surgical access during minimally invasive surgery using an endoscope, including but not limited to arthroscopes, thoracoscopes, laparoscopes, etc., to facilitate the entry and exit of endoscopes and surgical instruments into and out of the surgical access. For convenience of description, the arthroscopic surgery will be described as an example, but it should not be construed as limiting the invention.

FIG. 1 is a schematic view of a protective casing according to an embodiment of the present invention. The protective casing 1000 has a lumen (not visible) extending axially therethrough, and the protective casing 1000 includes a cannula 1100 and a grip 1200 disposed on the cannula 1100; the cannula 1100 has a smooth outer surface and has opposite first and second ends, where the first end (right side in the figure) is in a direction close to the operator and the second end (left side in the figure) is in a direction away from the operator, and the term "smooth" as used herein refers to a structure in which the outer surface of the cannula 1100 is flat and has no threads, protrusions, etc. to increase local pressure; the clamping portion 1200 includes a first limiting member 1210 and a second limiting member 1220, the first limiting member 1210 is disposed at the first end, the second limiting member 1220 is disposed at the second end, and the first limiting member 1210 and the second limiting member 1220 are used for clamping a target portion to fix the protection sleeve 1000.

In practice, during arthroscopic surgery, an incision is first made in the skin and an operative passage is formed, and then the protective sheath 1000 is introduced into the operative passage, so that the soft tissue around the operative passage (i.e., the target site) is clamped between the first stop member 1210 and the second stop member 1220, and the inner cavity forms a passage for the arthroscope and the surgical instrument to enter and exit the joint cavity. Because the cannula 1100 has a smooth outer surface, the protective sheath 1000 does not have a cutting effect on soft tissue surrounding the surgical access during the process of introducing the protective sheath 1000 into the surgical access and the process of rotating the protective sheath 1000 by the endoscope and the surgical instrument during the surgical procedure, thereby avoiding damage to the soft tissue. Meanwhile, the protective sheath 1000 is positioned at the surgical access by clamping the soft tissue around the surgical access through the first limiting member 1210 and the second limiting member 1220, and even if the surgical access is enlarged due to tissue cell swelling during the surgical procedure, the protective sheath 1000 can still clamp the soft tissue without loosening and losing efficacy from the surgical access, thereby ensuring the normal operation of the surgical procedure.

With continued reference to fig. 1, the second position-limiting member 1220 may include a first truncated cone structure 1221, and a diameter of a cross section of the first truncated cone structure 1221 gradually decreases from the first end to the second end of the sleeve 1100. Preferably, the second stop 1220 further includes a second truncated cone structure 1222 connected to the first truncated cone structure 1221, and a diameter of a cross-section of the second truncated cone structure 1222 is gradually increased from the first end to the second end of the sleeve 1100. In this way, when the protective sheath 1000 is introduced into the surgical passage, soft tissue around the surgical passage can slide into the holding mechanism 1200 (i.e., between the first stop 1210 and the second stop 1220) along the tapered surface of the first truncated cone structure 1221, and when the protective sheath 1000 is withdrawn at the end of the surgery, the soft tissue can be disengaged from the holding mechanism 1200 along the tapered surface of the second truncated cone structure 1222, facilitating the removal of the protective sheath 1000. In this embodiment, the taper of the first frustoconical structure 1221 is preferably less than the taper of the second frustoconical structure 1222 to facilitate maintaining the position of the protective sheath 1000 during a surgical procedure. Preferably, the diameter of the lower base of the first truncated cone structure 1221 is greater than or equal to the diameter of the lower base of the second truncated cone structure 1222, which is also advantageous for maintaining the position of the sheath 1000 during surgery, where the lower base is a larger base of the truncated cone.

Further, as shown in fig. 1 and fig. 4, the second limiting member 1220 includes a proximal limiting member 1211 and at least one distal limiting member 1212. The proximal stop 1211 may be a continuous circular platform structure and may be disposed on the first end of the sleeve 1100 around the axis of the sleeve 1100 (i.e., the proximal stop 1211 has two end faces perpendicular to the axial direction of the sleeve 1100). The distal stop 1212 may be a ring-shaped structure with an opening and is detachably disposed on the cannula 1100. When there is less soft tissue surrounding the surgical pathway than enough to stably position the protective sheath 1000, at least one of the distal stops 1212 may be disposed on the sheath 1100 between the soft tissue and the proximal stop 1211, so that the holding portion 1200 firmly holds the soft tissue to ensure the protective sheath 1000 is reliably positioned, and the proximal stop 1211 can limit the movement of the distal stop 1212 in the first direction to prevent the distal stop 1212 from coming off the sheath 1100.

It should be understood that the protective sheath 1000 of the present embodiment can be made of elastic material, and the specific materials include, but are not limited to, rubber, silicone, polyethylene, polypropylene, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene copolymer, etc. In addition, the inner diameter of the distal end stopper 1212 is matched with the outer diameter of the cannula 1100, and the size of the opening is determined by the fact that the distal end stopper 1212 can be clamped on the cannula 1100 without falling off.

The inner cavity of the protective sleeve 1000 is communicated with the outside, specifically, the inner cavity is provided with annular blocking pieces at the first end and the second end of the sleeve 1100, the blocking pieces are provided with through holes communicated with the inner cavity, and the aperture of the through holes is smaller than the inner diameter of the inner cavity. When in operation, the arthroscope and the surgical instrument enter the joint cavity for diagnosis and treatment through the inner cavity and the through hole in sequence.

Generally, arthroscopic surgery is performed by infusing saline solution and maintaining sufficient infusion pressure to expand the joint cavity sufficiently to obtain a good surgical field, so that the leakage of fluid from the joint cavity through the protective sleeve 1000 during the surgery should be avoided as much as possible. For this purpose, referring to fig. 2, the inner cavity is provided with a first elastic membrane 1110 covering the through hole on a baffle plate at the first end of the cannula 1100, the first elastic membrane 1110 is provided with at least one first incision 1111, and when the first elastic membrane 1110 is stressed, all the first incisions 1111 are spread open to expose the inner cavity. Similarly, referring to fig. 3, a second elastic membrane 1120 covering the through hole may be disposed on the baffle at the second end of the cannula 1100, the second elastic membrane 1120 is disposed with at least one second incision 1121, when the second elastic membrane 1120 is stressed, all the second incisions 1121 are spread out to expose the through hole, and when the second incisions 1121 and the first incisions 1111 are projected onto a plane perpendicular to the axial direction of the cannula 1100, the projection of any one of the second incisions 1121 does not coincide with the projection of any one of the first incisions 1111 (i.e., the projection of any one of the first incisions is staggered with the projection of any one of the second incisions), so that the liquid seepage in the joint cavity can be reduced.

As shown in fig. 5, a second objective of the present invention is to provide a pushing mechanism 2000 for pushing the protective sheath 1000 to a target position (i.e. an operation path during arthroscopic surgery).

With continued reference to fig. 5 and fig. 6, the pushing mechanism 2000 includes a pushing rod 2100 and an operating portion 2200 connected to each other, the pushing rod 2100 is used for inserting the protective sheath 1000, and the operating portion 2200 is used for pushing the pushing rod 2100 to push the protective sheath 1000 into the surgical access.

Specifically, the push rod 2100 includes a rod 2110, and the diameter of the rod 2110 may be smaller than the inner diameter of the sleeve 1100 and match the diameter of the through hole on the first end stop of the sleeve 1100. When the rod 2110 is inserted into the through hole, the first elastic membrane 1110 is spread from the first incision 1111 and enters the inner cavity of the cannula 1100.

Body 2110 has third and fourth opposing ends. The third end is connected to the operation portion 2200, and the fourth end is provided with a guiding section 2120, the diameter of the guiding section 2120 is smaller than that of the shaft 2100, for example, the diameter of the guiding section 2120 can match the diameter of the through hole on the second end stop of the sleeve 1100. When the pushing rod 2100 is inserted into the sheath 1000, the guiding section 2120 is inserted into the through hole of the second end of the sleeve 1100, and the first elastic membrane 1110 is spread from the second incision 1121, and the sheath 1000 is extended from the second end of the sleeve 1100. In this manner, the guide section 2120 may serve as an insertion guide during introduction of the protective sheath 1000 into the surgical pathway. In addition, to facilitate pushing, the pushing rod 2100 may be made of a material with good rigidity, such as stainless steel. The operation portion 2200 is not particularly limited as long as it is easy to hold, and may be made of a polymer material such as silicone rubber, Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polystyrene (PS), acrylonitrile-butadiene-styrene copolymer (ABS), or the like.

Optionally, the rod 2110 may further be provided with a pushing member 2130, and when the pushing mechanism 2000 pushes the protective sheath 1000 into the surgical access, the pushing member 2130 is configured to abut against the protective sheath 1000, so that the operating portion 2100 transmits a pushing force to the protective sheath 1000 through the pushing member 2130. It is understood that the ejector 2130 may be a continuous ring structure or a plurality of protrusions spaced along the circumference of the shaft 2110, but the outer diameter of the ejector 2130 should not be smaller than the inner diameter of the casing 1100.

Further, as shown in fig. 6, an embodiment of the present invention further provides a protective sheath assembly, which includes the protective sheath 1000 and the pushing mechanism 2000 as described above.

The following describes a method for using the protective sleeve assembly provided by the embodiment of the invention.

First, an incision is made at the joint and an operative corridor is created that communicates with the joint cavity.

Next, the pushing rod 2100 is inserted into the protective sheath 1000, wherein the guiding portion 2120 extends from the distal end (i.e. the end away from the operator, in the embodiment of the present invention, the second end) of the protective sheath 1000, and the pushing element 2130 abuts against the protective sheath 1000 (e.g. the pushing element 2130 abuts against the proximal stop 1211).

Next, the guide section 2120 is inserted into the incision, and the operator holds the operation part 2200 and applies force to the protection sleeve 1000 to push the protection sleeve 1000 into the surgical passage, so that the soft tissue around the surgical passage enters the holding part 1200.

Then, it is determined whether the distal end limiting element 1212 needs to be installed, and if the soft tissue is thin, at least one distal end limiting element 1212 is additionally installed between the proximal end limiting element 1211 and the soft tissue, so that the protective sheath 1000 is stably positioned at the surgical access; the distal stop 1212 is not required if the thickness of the soft tissue is such that the protective sheath 1000 can be positioned.

Finally, the pushing mechanism 2000 is pulled away.

Thereafter, arthroscopes and surgical instruments may be advanced along protective sheath 1000 into the joint cavity for diagnosis and treatment.

In the protective sleeve, the pushing mechanism and the protective sleeve assembly provided by the embodiment of the invention, when the protective sleeve is implanted into the operation path and in the operation process, the soft tissues around the operation path cannot be cut and damaged due to the smooth outer surface of the sleeve, so that the healing effect after the operation is improved. Meanwhile, soft tissue is clamped through the clamping part so that the protective sleeve is positioned at the position of an operation access, the phenomenon that the protective sleeve is loosened and loses efficacy due to the fact that the operation access is enlarged in the operation process is avoided, and the soft tissue is clamped by the clamping part so that the view of the arthroscope can be prevented from being blocked by the soft tissue. Through the design of the protective sleeves with different specifications and models and the pushing mechanism, the protective sleeve component can be applied to endoscopic surgery of multiple parts of a human body.

Although the present invention is disclosed above, it is not limited thereto. Various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.