Traction device for endoscopic surgery
By designing a flexible strip-like retractor, the problem that clamping devices are difficult to stably clamp tissues and organs during laparoscopic surgery is solved, and the retractor forms knots to fix tissues and organs in the body to avoid damage. Improve the surgical effect.
Patent Information
- Application Number
- CN202420342527.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-25
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-02-25
AI Technical Summary
Due to the small incision in laparoscopic surgery, it is difficult to use hook assistance, which leads to the clamping device clamping tissue or organs, and the force is insufficient and it is easy to loosen. Too tight or repeated clamping can easily lead to damage to the tissue/organ.
Design a flexible strip-like retractor, which is fed into the body cavity through the introducer, which forms a knot in the body to fix tissue or organs, and clamps the retractor through the puncture sleeve and clamps the retractor outside the body. Avoid direct clamping of tissues and organs.
Effectively fix tissues and organs, avoid clamping instruments directly clamping human tissues and organs, reduce the risk of damage, and improve the exposure of the surgical field.
Smart Images
Figure CN222426090U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laparoscopic surgery, in particular to a traction device used in laparoscopic surgery. Background Art
[0002] Compared with open surgery, laparoscopic surgery has the advantages of less trauma, less risk of wound infection and difficulty in healing, faster postoperative recovery, and small and hidden scars after healing. It is widely used in the field of surgery. On the other hand, due to the small incision, the exposure of the surgical site in laparoscopic surgery cannot be assisted by various retractors like open surgery. It can only rely on changing the patient's position or using clamps to clamp or push and pull tissues and organs through the puncture channel. When using clamps to clamp tissues, it is easy to loosen if the clamping force is insufficient, and clamping too tight or repeated clamping can easily cause damage to tissues / organs. Utility Model Content
[0003] The utility model aims to provide a traction device for laparoscopic surgery. The traction device forms a knot in the body to fix tissues / organs. The traction device is clamped outside the body through a clamping instrument passing through a puncture sleeve to solve the technical problems mentioned in the background technology.
[0004] In order to solve the above technical problems, the utility model specifically provides the following technical solutions: a traction device for laparoscopic surgery, comprising:
[0005] The retractor is a flexible long strip structure; one end of the retractor is provided with a first penetration opening, and the other end is a penetration end capable of passing through the first penetration opening;
[0006] The introducer is used to send the retractor into the body cavity.
[0007] Furthermore, the retractor is provided with a second penetration opening above or below the first penetration opening, and the penetration end of the retractor can pass through the second penetration opening.
[0008] Furthermore, the retractor is made of gauze.
[0009] Furthermore, edge portions of the first penetration opening and the second penetration opening are reinforced by yarn.
[0010] Furthermore, the introducer includes a cylinder and a push rod; the retractor is folded and stored in the cylinder, both ends of the cylinder are orifice structures, and the push rod performs piston motion in the cylinder to push the retractor out of the orifice.
[0011] Furthermore, the inner diameter of the hole at one end of the retractor pushed out from the barrel is consistent with the inner diameter of the barrel.
[0012] Furthermore, the outer diameter of the cylinder is smaller than the inner diameter of the puncture sleeve.
[0013] Compared with the prior art, the utility model has the following beneficial effects: the retractor forms a knot in the body to fix tissues and organs, and the retractor is clamped outside the body by passing the clamping instrument through the puncture sleeve, so as to avoid the clamping instrument directly clamping the tissues and organs of the human body. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0015] Figure 1 is a schematic diagram of the structure of the retractor;
[0016] Figure 2 is a schematic diagram of the structure of the retractor inside the introducer;
[0017] Figure 3 A schematic diagram of an implementation method of a penetration port;
[0018] Figure 4 A schematic diagram of another embodiment of the penetration port;
[0019] Figure 5 This is a schematic diagram of the structure of the pulling device of this application when it is in use.
[0020] The numbers in the figure represent the following:
[0021] 1- puller, 11- first insertion port, 12- second insertion port, 13- yarn, 14- insertion end;
[0022] 2-introducer, 21-cylinder, 22-push rod. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] like Figure 1 and Figure 2As shown, the utility model provides a traction device for laparoscopic surgery, including a retractor 1 with a flexible long strip structure, and an introducer 2 for delivering the retractor 1 into a body cavity; one end of the retractor 1 is provided with a first penetration port 11, and the other end is a penetration end 14, which can pass through the first penetration port 11.
[0025] During a general operation, laparoscopic surgery usually involves making four holes for the purpose or motivation of inserting instruments or performing operations, as follows:
[0026] 1. A hole above or below the navel is usually about 1 cm, or 10 mm, called an observation hole, which is used to insert laparoscopic instruments;
[0027] 2. The surgery requires two holes, one is the main operation hole of about 10mm, and the other is the auxiliary operation hole of about 5mm;
[0028] 3. There is also an auxiliary hole of about 5 mm, which is usually used by assistants to help the surgeon pull the organs and expose the surgical field.
[0029] like Figure 2 and Figure 5 As shown, the retractor is rolled into a cylindrical shape and inserted into the barrel when it leaves the factory. It is a disposable item. When the surgeon is operating, the introducer is inserted into the puncture cannula at the auxiliary hole, and then the retractor is pushed out of the barrel and sent into the body cavity. The surgeon unfolds the retractor by operating the clamps at the main operation hole and the auxiliary operation hole; one of the clamps lifts the tissue or organ to be retracted, and the other clamp pulls the retractor out from under the tissue or organ, so that the main body of the retractor is located under the tissue or organ. Then the two clamps cooperate to pass the insertion end of the retractor through the first penetration port, so that the two ends of the retractor form a knot in the body cavity, wrapping the tissue or organ to be retracted, and then the assistant operates the clamp at the auxiliary hole to clamp the end of the retractor, and pulls and fixes the tissue and organ to better expose the surgical field without causing damage to the tissue and organ.
[0030] The retractor 1 is provided with a second penetration port 12 above or below the first penetration port 11, and the penetration end 14 of the retractor 1 can pass through the second penetration port 12; the penetration end of the retractor passes through the two penetration ports in sequence from bottom to top to prevent the penetration end from slipping out of the penetration port, causing the retractor to separate from tissues and organs.
[0031] The retractor 1 is made of gauze, and has a large contact surface with tissues and organs, which is not easy to damage the tissues and organs. The edges of the first penetration hole 11 and the second penetration hole 12 are reinforced by yarn 13 to prevent the retractor from splitting from the two penetration holes during the process of pulling the tissues and organs.
[0032] like Figure 3As shown, one embodiment of the penetration port is circular, and the yarn is sewn along the edge of the circle for reinforcement; Figure 4 As shown, another embodiment is a straight line, and the suture yarns at both ends of the entrance are reinforced to prevent the entrance from being torn during the process of pulling tissues and organs.
[0033] picture Figure 2 The introducer 2 shown includes a barrel 21 and a push rod 22; the retractor 1 is folded and stored in the barrel 21, and both ends of the barrel 21 are orifice structures. The push rod 22 performs piston motion in the barrel 21 to push the retractor out of the orifice; the inner diameter of the orifice at one end of the retractor 1 pushed out of the barrel 21 is consistent with the inner diameter of the barrel 21, which is convenient for pushing the retractor out of the barrel; the outer diameter of the barrel 21 is smaller than the inner diameter of the puncture sleeve and can be inserted into the puncture sleeve; after the operation is completed, the surgeon directly cuts the main body of the retractor, and the assistant takes the retractor out of the body cavity through the auxiliary hole using a clamping instrument.
[0034] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.
Claims
1. A traction device for laparoscopic surgery, characterized in that: include, The retractor (1) is a flexible long strip structure; one end of the retractor (1) is provided with a first penetration opening (11), and the other end is a penetration end (14) capable of passing through the first penetration opening (11); An introducer (2) is used to deliver the retractor (1) into the body cavity; the retractor (1).
2. The traction device for laparoscopic surgery according to claim 1, characterized in that: The retractor (1) is provided with a second penetration opening (12) above or below the first penetration opening (11), and the penetration end (14) of the retractor (1) can pass through the second penetration opening (12).
3. The traction device for laparoscopic surgery according to claim 1, characterized in that: The retractor (1) is made of gauze.
4. The traction device for laparoscopic surgery according to claim 3, characterized in that: The edge portions of the first penetration opening (11) and the second penetration opening (12) are reinforced by yarns (13).
5. The traction device for laparoscopic surgery according to claim 1, characterized in that: The introducer (2) comprises a cylinder (21) and a push rod (22); the retractor (1) is folded and stored in the cylinder (21), both ends of the cylinder (21) are orifice structures, and the push rod (22) performs piston movement in the cylinder (21) to push the retractor out of the orifice.
6. The traction device for laparoscopic surgery according to claim 5, characterized in that: The inner diameter of the opening at one end of the retractor (1) pushed out from the cylinder (21) is consistent with the inner diameter of the cylinder (21).
7. The traction device for laparoscopic surgery according to claim 6, characterized in that: The outer diameter of the cylinder (21) is smaller than the inner diameter of the puncture sleeve.