Auxiliary instruments for laparoscopic NSM surgery and methods of use thereof
By designing a laminoscopic NSM surgical auxiliary device including protective sleeves, connections, flexible tubes and elastic fasteners, the problems of time-consuming and labor-intensive assembly of the laminoscopic puncture device and the puncture cannula fall off, improving surgical efficiency and safety.
Patent Information
- Application Number
- CN202510033513.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2045-01-09
AI Technical Summary
During laminoscopic NSM surgery, the assembly of the laminoscopic puncture device is time-consuming and labor-intensive, which can easily lead to the fall of the gloves and the puncture cannula, and there is a risk of falling off when the extension distance of the puncture cannula is subsequently adjusted.
An auxiliary device for laparoscopic NSM surgery is designed, including a protective sleeve, a connection, a flexible tube and a fastener. The fastener consists of an elastic fastening ring and a fastening belt. The puncture sleeve is fixed by the introscopic fastening ring and the tightening belt to avoid falling off and facilitate subsequent adjustment.
By eliminating the assembly process of the laminoscopic puncture device, the surgical efficiency is improved, the problem of gloves and protective sleeves fall off is solved, the puncture cannula is avoided, and the subsequent adjustment of the extension distance of the puncture cannula is facilitated.
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Figure CN119405404B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of surgical instruments, and specifically relates to endoscopic surgical instruments, and more particularly to an auxiliary instrument for laparoscopic NSM surgery and a method of using the same. Background Art
[0002] Nipple-sparing mastectomy (NSM) is a minimally invasive surgery commonly used in the treatment of breast cancer.
[0003] In the related art, when performing laparoscopic NSM surgery, it is necessary to assemble the laparoscopic puncture device in advance. The laparoscopic puncture device is composed of a protective ring, a glove, and a curved clip. The protective ring is clipped to the wrist of the glove, and the puncture cannula is inserted from the finger cut open by the glove, and then fixed by a rope. The assembly process is time-consuming and labor-intensive. If the assembly is not done properly, problems such as gloves falling off and puncture cannula falling off often occur. At the same time, when the insertion distance of the puncture cannula is subsequently adjusted, it needs to be fixed again by a rope, which increases the risk of the puncture cannula falling off.
[0004] Therefore, how to prevent the puncture cannula and gloves from falling off during the use of the laparoscopic puncture device and improve the surgical efficiency is a technical problem that needs to be solved urgently.
[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention
[0006] The embodiments of the present disclosure at least provide an auxiliary instrument for laparoscopic NSM surgery and a method for using the same.
[0007] In a first aspect, the present disclosure provides an auxiliary instrument for laparoscopic NSM surgery, including:
[0008] a protective sheath, which is inserted into a surgical incision;
[0009] A connecting portion connected to the protective cover;
[0010] A plurality of flexible tubes, all of which are arranged at the top of the connecting part and are in communication with the inner cavity of the connecting part, and the flexible tubes are used for inserting the puncture cannula;
[0011] A fastener is arranged on the flexible tube and is used for fastening the puncture sleeve inserted into the flexible tube.
[0012] In an optional embodiment, the fastener comprises: an elastic fastening ring and a fastening belt;
[0013] The side wall of the elastic fastening ring is provided with a plurality of through holes;
[0014] One end of the fastening band is inserted into the corresponding through hole from the outer wall of the elastic fastening ring and extends out from the inner wall of the elastic fastening ring, then inserted into the next through hole from the inner wall of the elastic fastening ring and extends out from the outer wall of the elastic fastening ring, and repeats this process until the fastening band passes through all the through holes.
[0015] In an optional embodiment, when tightening, the tightening belt is tightened, and the elastic tightening ring shrinks inwardly to abut against the puncture cannula, thereby completing the tightening of the puncture cannula;
[0016] When releasing, the fastening belt is loosened, and the elastic fastening ring recovers its deformation, thereby releasing the fastening of the puncture sleeve.
[0017] In an optional embodiment, a supporting portion is radially extended inwardly from the inner wall of the elastic fastening ring at a position corresponding to the fastening belt;
[0018] The abutting portion is semicircular;
[0019] When tightening, the tightening belt is pulled tight, and the elastic tightening ring shrinks inwards until the abutting portion abuts against the puncture sleeve, and the portion of the elastic tightening ring without the abutting portion is deformed radially outwards to form a bulge;
[0020] The two adjacent supporting portions and the corresponding protrusions are combined to form an exhaust hole for subsequent exhaust.
[0021] In an optional embodiment, when releasing, the fastening belt is loosened, the elastic fastening ring and the protrusion recover their deformation, and the fastening of the puncture sleeve is released.
[0022] In an optional embodiment, the protective sleeve includes a first rubber ring, a second rubber ring and a flexible sleeve;
[0023] The first rubber ring and the second rubber ring are arranged opposite to each other;
[0024] The flexible sleeve is arranged between the first rubber ring and the second rubber ring.
[0025] In an optional embodiment, the top of the connecting portion is oval;
[0026] At least two of the flexible tubes are arranged on the short axis at the top of the connecting portion for subsequent insertion of the puncture cannula of the endoscope;
[0027] At least two of the flexible tubes are arranged on the long axis of the top of the connecting portion for subsequent insertion of puncture sleeves of electric knives and grasping forceps.
[0028] In a second aspect, the present disclosure also provides a method for using the auxiliary instrument for laparoscopic NSM surgery as described above.
[0029] Inserting the puncture cannula into the corresponding flexible tube;
[0030] Fasten the puncture cannula by means of a fastener;
[0031] inserting the protective sleeve into the surgical incision;
[0032] Insert the endoscope, electrosurgical knife and grasping forceps into the corresponding puncture cannula;
[0033] Laparoscopic NSM surgery was performed using the inflation method.
[0034] In an optional embodiment, the fastener comprises: an elastic fastening ring and a fastening belt;
[0035] The side wall of the elastic fastening ring is provided with a plurality of through holes;
[0036] One end of the fastening band is inserted from the outer wall of the elastic fastening ring into the corresponding through hole and extends from the inner wall of the elastic fastening ring, then inserted from the inner wall of the elastic fastening ring into the next through hole and extends from the outer wall of the elastic fastening ring, and repeats this process until the fastening band passes through all the through holes;
[0037] An abutment portion is radially extended inwardly from the inner wall of the elastic fastening ring at a position corresponding to the fastening belt;
[0038] The abutting portion is semicircular;
[0039] The step of fastening the puncture cannula by the fastener is:
[0040] When tightening, the tightening belt is pulled tight, and the elastic tightening ring shrinks inwards until the abutting portion abuts against the puncture sleeve, and the portion of the elastic tightening ring without the abutting portion is deformed radially outwards to form a bulge;
[0041] The two adjacent abutting portions and the corresponding protrusions are combined to form an exhaust hole for subsequent exhaust.
[0042] In an optional embodiment, when the position of the puncture cannula needs to be adjusted, the method for using the auxiliary instrument for laparoscopic NSM surgery further includes:
[0043] The fastening belt is loosened, and the elastic fastening ring and the protrusion recover their deformation to release the fastening of the puncture sleeve;
[0044] Adjusting the position of the puncture cannula;
[0045] The tightening belt is tightened, and the elastic fastening ring shrinks inwardly until the abutting portion abuts against the puncture sleeve, and the portion of the elastic fastening ring where the abutting portion is not provided is deformed radially outward to form a bulge.
[0046] The beneficial effects of the present invention are that the auxiliary instrument for laparoscopic NSM surgery and the method of using the same eliminate the assembly process of the laparoscopic puncture device, improve the surgical efficiency, and solve the problem of gloves and protective covers falling off in related technologies. At the same time, fasteners are arranged on the flexible tube to fix the puncture cannula, thereby avoiding the puncture cannula from falling off and facilitating the subsequent adjustment of the insertion distance of the puncture cannula.
[0047] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.
[0048] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0049] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0050] Figure 1 A schematic diagram of the structure of an auxiliary instrument for laparoscopic NSM surgery provided in an embodiment of the present disclosure;
[0051] Figure 2 A schematic diagram of a partial structure of an auxiliary instrument for laparoscopic NSM surgery provided in an embodiment of the present disclosure;
[0052] Figure 3 A schematic diagram of the structure of a fastener provided in an embodiment of the present disclosure;
[0053] Figure 4 A schematic diagram of the fastener provided in an embodiment of the present disclosure when being fastened;
[0054] Figure 5 A top view of an auxiliary instrument for laparoscopic NSM surgery provided in an embodiment of the present disclosure;
[0055] Figure 6 A method for using auxiliary instruments for laparoscopic NSM surgery provided in an embodiment of the present disclosure.
[0056] In the figure: 100, protective sleeve; 110, first rubber ring; 120, second rubber ring; 130, flexible sleeve; 200, connecting part; 210, inner cavity; 300, flexible tube; 400, fastener; 410, elastic fastening ring; 411, perforation; 412, outer wall; 413, inner wall; 420, fastening belt; 430, supporting part; 440, protrusion; 450, exhaust hole; 500, puncture sleeve. DETAILED DESCRIPTION
[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0058] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0059] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, in the drawings, the thickness of the components may be exaggerated or reduced in order to effectively describe the technical content.
[0060] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0061] See also Figure 1At least one embodiment provides an auxiliary instrument for laparoscopic NSM surgery, including: a protective cover 100, which is used to be inserted into a surgical incision; a connecting part 200, which is connected to the protective cover 100; a plurality of flexible tubes 300, which are all arranged at the top of the connecting part 200 and are all connected to the inner cavity 210 of the connecting part 200, and the flexible tube 300 is used for inserting a puncture sleeve 500; a fastener 400, which is arranged on the flexible tube 300 and is used to fasten the puncture sleeve 500 inserted into the flexible tube 300. By designing an integrated auxiliary instrument for laparoscopic NSM surgery, the assembly process of the laparoscopic puncture device is omitted, the surgical efficiency is improved, and the problem of gloves and protective covers falling off in the related art is solved. At the same time, the fastener 400 is arranged on the flexible tube 300 for fixing the puncture sleeve 500, which prevents the puncture sleeve from falling off and facilitates the subsequent adjustment of the insertion distance of the puncture sleeve 500.
[0062] See also Figure 2 and Figure 3 In some embodiments, the fastener 400 includes: an elastic fastening ring 410 and a fastening belt 420; the side wall of the elastic fastening ring 410 is provided with a plurality of through holes 411; one end of the fastening belt 420 is inserted from the outer wall 412 of the elastic fastening ring 410 into the corresponding through hole 411, and extends from the inner wall 413 of the elastic fastening ring 410, and then inserted from the inner wall 413 of the elastic fastening ring 410 into the next through hole 411, and extends from the outer wall 412 of the elastic fastening ring 410, and so on and so forth, until the fastening belt 420 passes through all the through holes 411. In the related art, the assembly method using ropes and gloves is adopted, and the rope needs to be completely tied to the puncture sleeve. When the rope is not tied tightly, the puncture sleeve is easy to fall off. However, this embodiment uses an elastic fastening ring 410 and a fastening belt 420 to cooperate so that the elastic fastening ring 410 can flexibly abut against the puncture sleeve when contracted. Even if the fastening belt 420 is not tied tightly, the puncture sleeve can be firmly abutted by the elastic fastening ring 410, thereby ensuring that the puncture sleeve 500 will not fall off.
[0063] Specifically, when tightening, the tightening belt 420 is pulled tight, and the elastic tightening ring 410 shrinks inward to abut against the puncture sleeve 500, thereby completing the tightening of the puncture sleeve 500; when loosening, the tightening belt 420 is loosened, and the elastic tightening ring 410 recovers its deformation, thereby releasing the tightening of the puncture sleeve 500. The puncture sleeve 500 is fixed by tightening the elastic tightening ring 410 with the tightening belt 420, so that the position of the puncture sleeve 500 can be adjusted later.
[0064] It should be noted that after the fastening belt 420 is tightened, both ends of the fastening belt 420 need to be manually tied.
[0065] See also Figure 4 In some embodiments, a supporting portion 430 is radially extended inwardly from the inner wall 413 of the elastic fastening ring 410 corresponding to the fastening belt 420; the supporting portion 430 is semicircular.
[0066] When tightening, tighten the tightening belt 420, such as Figure 4 As shown in F1, the elastic fastening ring 410 shrinks inwards. Figure 4 As shown in F2, until the abutting portion 430 abuts against the puncture sleeve 500, the portion of the elastic fastening ring 410 where the abutting portion 430 is not provided is deformed radially outward, as shown in FIG. Figure 4 As shown in F3, a protrusion 440 is formed; two adjacent abutting portions 430 and the corresponding protrusion 440 enclose an exhaust hole 450 for subsequent exhaust. Since the abutting portion 430 is made of elastic material, the size of the exhaust hole 450 can be changed by adjusting the tension of the fastening belt 420, thereby facilitating the adjustment of the exhaust flow of carbon dioxide in the air cavity during laparoscopic NSM surgery.
[0067] When loosening, the tightening belt 420 is loosened, and the elastic tightening ring 410 and the protrusion 440 recover their deformation to release the tightening of the puncture sleeve 500. Figure 4 The fastening belt 420 is pulled tight in the middle F1 direction, and the two ends of the fastening belt 420 are tied tightly. When it is necessary to loosen, the two ends of the fastening belt 420 are loosened, the elastic fastening ring 410 and the protrusion 440 are reset, and the fastening of the puncture sleeve 500 is released.
[0068] Please continue to participate Figure 1 In some embodiments, the protective cover 100 includes a first rubber ring 110 , a second rubber ring 120 and a flexible cover 130 ; the first rubber ring 110 and the second rubber ring 120 are arranged opposite to each other; and the flexible cover 130 is arranged between the first rubber ring 110 and the second rubber ring 120 .
[0069] It should be noted that, in order to adapt to skins of different thicknesses, the first rubber ring 110 can be rolled up during use, thereby reducing the length of the flexible sleeve 130 .
[0070] See also Figure 5In some embodiments, the top of the connection part 200 is elliptical; at least two of the flexible tubes 300 are arranged on the short axis of the top of the connection part 200 for subsequent insertion of the puncture sleeve 500 of the endoscope; at least two of the flexible tubes 300 are arranged on the long axis of the top of the connection part 200 for subsequent insertion of the puncture sleeve 500 of the electric knife and the grasping forceps. Compared with the glove connection method used in the related art, setting the top of the connection part 200 to an elliptical shape can better limit the distance between the electric knife and the grasping forceps, reduce mutual interference between the electric knife, the grasping forceps and the endoscope inside and outside the abdominal cavity, and improve the fluency and safety of the surgical operation, that is, avoid the chopstick effect.
[0071] See also Figure 6 At least one embodiment further provides a method for using the auxiliary instrument for laparoscopic NSM surgery as described above. By designing an integrated auxiliary instrument for laparoscopic NSM surgery, the assembly process of the laparoscopic puncture device is omitted, the surgical efficiency is improved, and the problem of gloves and protective covers falling off in related technologies is solved. At the same time, a fastener is provided on the flexible tube for fixing the puncture cannula, thereby preventing the puncture cannula from falling off and facilitating the subsequent adjustment of the insertion distance of the puncture cannula.
[0072] Specifically, the method includes:
[0073] S110 : inserting the puncture sleeve 500 into the corresponding flexible tube 300 .
[0074] S120 : Fasten the puncture sleeve 500 by the fastener 400 .
[0075] S130: Insert the protective cover 100 into the surgical incision.
[0076] S140: Insert the endoscope, the electric knife and the grasping forceps into the corresponding puncture sleeve 500.
[0077] S150: Laparoscopic NSM surgery using the inflation method.
[0078] The inflation method refers to injecting carbon dioxide into the connecting part 200 using a single-hole converter to establish an air cavity. The pressure of the air cavity is between 8-12 mmhg, and the flow rate of carbon dioxide is between 12-40 L / min.
[0079] See also Figure 2 and Figure 3In some embodiments, the fastener 400 includes: an elastic fastening ring 410 and a fastening band 420; a plurality of through holes 411 are formed on the side wall of the elastic fastening ring 410; one end of the fastening band 420 is inserted from the outer wall 412 of the elastic fastening ring 410 into the corresponding through hole 411 and extends from the inner wall 413 of the elastic fastening ring 410, and then inserted from the inner wall 413 of the elastic fastening ring 410 into the next through hole 411 and extends from the outer wall 412 of the elastic fastening ring 410, and so on and so forth until the fastening band 420 passes through all the through holes 411; a supporting portion 430 is radially extended inwardly from the inner wall 413 of the elastic fastening ring 410 corresponding to the fastening band 420; the supporting portion 430 is semicircular.
[0080] See also Figure 4 Specifically, step S120, namely: during tightening, the tightening belt 420 is tightened, and the elastic tightening ring 410 shrinks inwards, such as Figure 4 As shown in F2, until the abutting portion 430 abuts against the puncture sleeve 500, the portion of the elastic fastening ring 410 where the abutting portion 430 is not provided is deformed radially outward, as shown in FIG. Figure 4 As shown in F3 , a protrusion 440 is formed; two adjacent supporting portions 430 and the corresponding protrusion 440 are combined to form an exhaust hole 450 for subsequent exhaust.
[0081] In some embodiments, when the position of the puncture cannula 500 needs to be adjusted, the method for using the auxiliary instrument for laparoscopic NSM surgery further includes:
[0082] S160: loosening the fastening belt, and the elastic fastening ring and the protrusion recover their deformation to release the fastening of the puncture sleeve;
[0083] S170: adjusting the position of the puncture cannula 500;
[0084] S180 : Tighten the fastening belt 420 , and the elastic fastening ring 410 contracts inwards until the abutting portion 430 abuts against the puncture sleeve 500 , and the portion of the elastic fastening ring 410 where the abutting portion 430 is not provided is deformed radially outwards to form a protrusion 440 .
[0085] In summary, the present invention provides an auxiliary instrument for laparoscopic NSM surgery and a method of using the same, wherein the auxiliary instrument for laparoscopic NSM surgery includes: a protective cover 100, which is used to be inserted into a surgical incision; a connecting portion 200, which is connected to the protective cover 100; a plurality of flexible tubes 300, which are all arranged at the top of the connecting portion 200 and are all connected to the inner cavity of the connecting portion 200 for inserting a puncture cannula 500; a fastener 400, which is arranged on the flexible tube 300 and is used to fasten the inserted puncture cannula 500. By designing an integrated auxiliary instrument for laparoscopic NSM surgery, the assembly process of the laparoscopic puncture device is omitted, the surgical efficiency is improved, and the problem of gloves and protective covers falling off in the related art is solved. At the same time, fasteners are arranged on the flexible tube for fixing the puncture cannula, which avoids the puncture cannula from falling off and facilitates the subsequent adjustment of the insertion distance of the puncture cannula.
[0086] Spatially relative terms, such as "inside", "outside", "below", "below", "down", "above", "on", etc., may be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the figure. In addition to the orientation depicted in the figure, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example term "below" can cover the orientation above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.
[0087] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. An auxiliary instrument for laparoscopic NSM surgery, characterized in that: include: A protective sleeve (100) for insertion into a surgical incision; A connecting portion (200) connected to the protective cover (100); a plurality of flexible tubes (300), all of which are arranged at the top of the connecting portion (200) and are in communication with the inner cavity (210) of the connecting portion (200), the flexible tubes (300) being used for inserting the puncture cannula (500); a fastener (400) disposed on the flexible tube (300) and used to fasten the puncture sleeve (500) inserted into the flexible tube (300); The fastener (400) comprises: an elastic fastening ring (410) and a fastening belt (420); The side wall of the elastic fastening ring (410) is provided with a plurality of through holes (411); One end of the fastening band (420) is inserted from the outer wall (412) of the elastic fastening ring (410) into the corresponding through hole (411) and extends out from the inner wall (413) of the elastic fastening ring (410), and then inserted from the inner wall (413) of the elastic fastening ring (410) into the next through hole (411) and extends out from the outer wall (412) of the elastic fastening ring (410), and this process is repeated until the fastening band (420) passes through all the through holes (411); A supporting portion (430) extends radially inwardly from the inner wall (413) of the elastic fastening ring (410) at a position corresponding to the fastening belt (420); The abutting portion (430) is semicircular; When tightening, the tightening belt (420) is pulled tight, and the elastic tightening ring (410) contracts inwardly until the abutting portion (430) abuts against the puncture sleeve (500), and the portion of the elastic tightening ring (410) not provided with the abutting portion (430) is deformed radially outward to form a protrusion (440); Two adjacent supporting portions (430) and the corresponding protrusions (440) enclose an exhaust hole (450) for subsequent exhaust.
2. The auxiliary instrument for laparoscopic NSM surgery according to claim 1, characterized in that: When tightening, the tightening belt (420) is tightened, and the elastic tightening ring (410) shrinks inwards until it abuts against the puncture sleeve (500), thereby completing the tightening of the puncture sleeve (500); When loosening, the fastening belt (420) is loosened, and the elastic fastening ring (410) recovers its deformation, thereby releasing the fastening of the puncture sleeve (500).
3. The auxiliary instrument for laparoscopic NSM surgery according to claim 1, characterized in that: When loosening, the fastening belt (420) is loosened, the elastic fastening ring (410) and the protrusion (440) recover their deformation, and the fastening of the puncture sleeve (500) is released.
4. The auxiliary instrument for laparoscopic NSM surgery according to claim 1, characterized in that: The protective sleeve (100) comprises a first rubber ring (110), a second rubber ring (120) and a flexible sleeve (130); The first rubber ring (110) and the second rubber ring (120) are arranged opposite to each other; The flexible sleeve (130) is arranged between the first rubber ring (110) and the second rubber ring (120).
5. The auxiliary instrument for laparoscopic NSM surgery according to claim 1, characterized in that: The top of the connecting portion (200) is elliptical; At least two of the flexible tubes (300) are arranged on the short axis at the top of the connecting portion (200) for subsequent insertion of a puncture cannula (500) of an endoscope; At least two of the flexible tubes (300) are arranged on the long axis at the top of the connecting portion (200) for subsequent insertion of puncture sleeves (500) of electric knives and grasping forceps.
Citation Information
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