Right-angle knot pushing forceps for external thoracic minimally invasive surgery
By designing a right-angle ligation forceps for minimally invasive thoracic surgery with vertical protrusions and sliders, the problem of inefficient ligation by traditional right-angle ligation forceps in minimally invasive surgery has been solved, achieving more efficient and accurate ligation operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST HOSPITAL OF HEBEI MEDICAL UNIV
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional right-angle ligation forceps are difficult to use in minimally invasive thoracic surgery to achieve efficient ligation within a limited space. In particular, due to the limited operating space, it is difficult to reach specific angles and positions, which affects the efficiency and effectiveness of ligation.
A right-angle ligation forceps for minimally invasive thoracic surgery was designed, including a forceps body, a clamping part, and a holding part. The clamping part is provided with vertical protrusions and suture grooves. The slider can slide or be driven by a screw to provide convenient ligation operation. The cooperation between the slider and the protrusion can realize the crossing and knotting of surgical sutures inside and outside the body.
It improves the accuracy and efficiency of ligation, simplifies the operation steps, and enhances the convenience of operation and ligation in minimally invasive surgery.
Smart Images
Figure CN224125995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of minimally invasive surgery technology, specifically to a right-angle push-knot forceps for minimally invasive thoracic surgery. Background Technology
[0002] In the field of minimally invasive thoracic surgery, the precision and ease of operation of surgical instruments are extremely important. During the operation, reliable ligation is crucial for controlling bleeding and suturing tissues. Right-angle knot pushers are a commonly used tool, mainly used to push the tied knot into the body during the suturing process.
[0003] Traditional surgical ligation tools have some limitations in minimally invasive thoracic surgery. For example, common right-angle push-knot forceps require tying the knot outside the body and then pushing it inside. Due to the limited operating space during surgery, it is often difficult to reach certain angles and positions, affecting the efficiency and effectiveness of ligation. Utility Model Content
[0004] This invention proposes a right-angle knot-pushing forceps for minimally invasive thoracic surgery, which solves the problem of inconvenient knot-tying with right-angle knot-pushing forceps in related technologies.
[0005] The technical solution of this utility model is as follows:
[0006] A right-angle push-knot forceps for minimally invasive thoracic surgery includes:
[0007] The clamp body has a clamping part and a holding part;
[0008] A protrusion is provided at one end of the clamping portion away from the gripping portion. The protrusion is perpendicular to the clamping portion, and the end of the protrusion away from the gripping portion has a first groove.
[0009] As a further technical solution, the clamp body is a double-jointed clamp.
[0010] As a further technical solution, the clamping part includes:
[0011] The main body, wherein the protrusion is disposed on the main body;
[0012] A slider is slidably mounted on the main body. After sliding, the slider moves closer to the protrusion or the other end of the main body. The sliding direction of the slider is parallel to the length direction of the main body.
[0013] As a further technical solution, the end of the slider away from the protrusion has a second groove.
[0014] As a further technical solution, the main body has a groove, and the slider is slidably disposed in the groove.
[0015] As a further technical solution, the slider has a threaded hole, the axis of which is parallel to the sliding direction of the slider, and the gripping part includes:
[0016] A first screw is rotatably mounted on the main body, and the first screw is threadedly connected to the slider.
[0017] As a further technical solution, the slider has a threaded hole, the threaded hole being parallel to the sliding direction of the slider, and the gripping part includes:
[0018] The second screw is slidably mounted on the main body. One end of the second screw is threadedly connected to the threaded hole, and the other end has a handle.
[0019] As a further technical solution, the groove extends through the end of the body away from the protrusion and further includes:
[0020] A cover plate, detachably mounted on the main body, is used to open or close the slide groove. The cover plate has a through hole, the axis of which is collinear with the axis of the threaded hole.
[0021] As a further technical solution, it also includes:
[0022] An elastic element is provided at both ends on the cover plate and the slider, respectively, and the elastic element is used to provide a force for the slider to slide close to the protrusion.
[0023] The working principle and beneficial effects of this utility model are as follows:
[0024] During the procedure, the surgical sutures are first overlapped end-to-end, and the operator holds both ends of the suture in place. The first groove of the protrusion holds the middle of the suture, which is then pushed into the patient's body. Once the suture reaches the designated position, the clamps are rotated to create a crossover. The operator then withdraws the clamps and, by manipulating the handle, moves the clamping parts apart, placing one end of the suture outside the patient's body between the clamping parts. The operator then manipulates the holding part to clamp one end of the suture, using the clamps to wrap that end around the crossover point inside the patient's body. The clamping part releases the suture, and then, from the other side, the clamping part tightens the suture inside the patient's body, pulling it out of the body to complete the knot. The operator re-secures both ends of the suture, then places the clamping part between the fixed end and the crossover point, manipulating the handle to move the clamping parts apart, thus tightening the knot.
[0025] The design of the protrusion and the first suture groove provides a convenient structural foundation for ligation operations, preventing the surgical suture from detaching from the protrusion when the clamp rotates, thus improving the accuracy and efficiency of ligation. The protrusion is perpendicular to the clamping part, which can better push the surgical suture into the patient's body, simplifying the operator's steps and providing convenience for knot tying. Attached Figure Description
[0026] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.
[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 2 of this utility model;
[0028] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0029] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of this utility model;
[0030] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of this utility model;
[0031] Figure 5 This is a schematic diagram of another angle structure in Embodiment 4 of this utility model;
[0032] Figure 6 This is a schematic diagram of the structure of Embodiment 5 of this utility model;
[0033] Figure 7 This is a schematic diagram of another angle structure in Embodiment 5 of this utility model.
[0034] In the figure: 1. Clamp body, 101. Clamping part, 102. Holding part, 100. Main body, 110. Protrusion, 111. First groove, 200. Slider, 201. First groove, 120. Slide groove, 202. Threaded hole, 300. First screw, 400. Second screw, 500. Cover plate, 501. Through hole, 600. Elastic element. Detailed Implementation
[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0036] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0037] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0039] Example 1
[0040] Reference Figures 1-7 This is the first embodiment of the present invention, which proposes a right-angle push-knot forceps for minimally invasive thoracic surgery, including a forceps body 1, which has a clamping part 101 and a holding part 102; a protrusion 110 is disposed at the end of the clamping part 101 away from the holding part 102, the protrusion 110 is perpendicular to the clamping part 101, and the end of the protrusion 110 away from the holding part 102 has a first groove 201111.
[0041] In this embodiment, the clamp body 1 consists of a clamping part 101 and a gripping part 102. A protrusion 110 is integrally formed or fixed to the end of the clamping part 101 away from the gripping part 102, and the protrusion 110 is perpendicular to the clamping part 101. A first groove 201111 is formed at the end of the protrusion 110 away from the gripping part 102, and the size and shape of the groove are designed according to actual needs.
[0042] During the surgical procedure, the surgical sutures are first overlapped end-to-end, and the operator holds both ends of the suture in place. The first groove 201111 of the protrusion 110 is used to hold the middle of the suture. The suture is then pushed into the patient's body. Once it reaches the designated position, the clamp body 1 is rotated to cause the sutures to cross. The operator then removes the clamp body 1 and uses the handle 102 to move the clamping parts 101 apart, placing one end of the suture outside the patient's body between the clamping parts 101. The operator operates the holding part to clamp one end of the suture with the clamping parts 101. The operator then uses the clamp body 1 to wrap one end of the suture around the point where the sutures cross inside the patient's body. The clamping parts 101 release the suture, and then the suture is clamped again from the other side through the clamping parts 101, and pulled out of the body, completing the knotting process inside the patient's body. The operator re-fixes both ends of the surgical suture, then places the clamping part 101 between the fixed end and the intersection of the surgical suture, operates the holding part 102 to move the clamping parts 101 away from each other, and the clamping parts 101 open the surgical suture, thereby achieving the purpose of tightening the knot.
[0043] The design of the protrusion 110 and the first suture groove 201111 provides a convenient structural basis for ligation operations, preventing the surgical suture from detaching from the protrusion 110 when the clamp 1 rotates, thus improving the accuracy and efficiency of ligation. The protrusion 110 is perpendicular to the clamping part 101, which can better push the surgical suture into the patient's body, simplifying the operator's operation steps and providing convenience for knot tying.
[0044] Example 2
[0045] Reference Figures 1-2 This is the second embodiment of the present invention. Based on the first embodiment, the clamp body 1 is further a double-jointed clamp.
[0046] In this embodiment, the gripping part 102 has a joint and the clamping part 101 has a joint. The two joints are connected by a pull wire or a slider 200. The operator controls the joint rotation of the clamping part 101 by operating the gripping part 102. The joint rotation of the clamping part 101 can realize the clamping or releasing operation.
[0047] The structure of the double-jointed forceps reduces the overall volume of the forceps body 1 while maintaining its length, making it easier to operate during surgery.
[0048] Example 3
[0049] Reference Figures 3-7This is the third embodiment of the present utility model. Based on the first embodiment, it differs from the second embodiment in that: the clamping part 101 includes a main body 100, and a protrusion 110 is disposed at one end of the main body 100; the slider 200 is slidably disposed on the main body 100, and after sliding, the slider 200 approaches the protrusion 110 or the other end of the main body 100, and the sliding direction of the slider 200 is parallel to the length direction of the main body 100.
[0050] In this embodiment, the main body 100 is made of a high-strength, corrosion-resistant material that meets medical device standards. The protrusion 110 is integrally formed with the main body 100, and its surface is smooth without sharp corners to avoid damage to tissues. The protrusion 110 and the main body 100 are at right angles. The slider 200 is mounted on the main body 100 via a slide rail or slide groove 120 structure, and can slide smoothly along the length of the main body 100.
[0051] During the surgical procedure, the surgical sutures are first overlapped end to end and fixed externally by the operator. The first groove 111 of the protrusion 110 holds the middle of the suture. The suture is then pushed into the patient's body. Once it reaches the designated position, the main body 100 is rotated to create a crossover. The operator then removes the main body 100 and slides the slider 200 away from the protrusion 110, placing one end of the suture outside the patient's body between the protrusion 110 and the slider 200. The operator slides the slider 200 closer to the protrusion 110, clamping one end of the suture between them. The operator uses the main body 100 to wrap one end of the suture around the crossover point inside the patient's body. The slider 200 is then slid away from the protrusion 110 to release the suture. The suture is then clamped from the other side by the slider 200 and pulled out of the body, completing the knot-tying process inside the patient's body. The operator re-fixes both ends of the surgical suture, then places the slider 200 and the protrusion 110 between the fixed end and the intersection of the surgical suture, and slides the slider 200 away from the protrusion 110, so that the slider 200 and the protrusion 110 open the surgical suture, thereby achieving the purpose of tightening the nodules.
[0052] The design of the protrusion 110 and the first groove 111 provides a convenient structural foundation for ligation operations, improving the accuracy and efficiency of ligation. The sliding design of the slider 200 increases the operational flexibility of the tool, enabling it to adapt to different surgical scenarios and ligation needs.
[0053] It should be further noted that the drive end of slider 200 should be located on the side outside the patient's body.
[0054] Example 4
[0055] Reference Figures 3-5This is the fourth embodiment of the present invention. Based on the third embodiment, the slider 200 has a second groove 201 at the end away from the protrusion 110.
[0056] In this embodiment, the second groove 201 at the end of the slider 200 away from the protrusion 110 can abut against the two surgical sutures between the first groove 111 on the protrusion 110 and the surgical suture knotting part and the surgical suture fixing part respectively when the slider 200 slides away from the protrusion 110, thereby achieving the purpose of tightening the knot by spreading the surgical suture.
[0057] The second groove 201 facilitates the positioning of the surgical suture and prevents the surgical suture from slipping during the sliding process of the slider 200, which would cause operational difficulties.
[0058] Furthermore, the main body 100 has a groove 120, and the slider 200 is slidably disposed in the groove 120.
[0059] In this embodiment, the groove 120 on the main body 100 has precise dimensions and a smooth inner surface to ensure that the slider 200 can slide smoothly within it. The slider 200 and the groove 120 are tightly fitted with reasonable tolerances, so that the slider 200 will not jam or wobble when sliding within the groove 120.
[0060] In actual surgical procedures, when it is necessary to use right-angle push forceps for ligation, the doctor can easily push the slider 200 to slide within the groove 120 to achieve the required operation.
[0061] Furthermore, the slider 200 has a threaded hole 202, the axis of which is parallel to the sliding direction of the slider 200, and also includes a first screw 300, which is rotatably mounted on the main body 100 and is threadedly connected to the slider 200.
[0062] In this embodiment, the threaded hole 202 inside the slider 200 ensures a good fit with the first screw 300. The first screw 300 is rotatably mounted on the main body 100 via bearings or other devices, and its axis of rotation is strictly parallel to the sliding direction of the slider 200.
[0063] During operation, when it is necessary for the slider 200 to slide, the first screw 300 is rotated. Since the first screw 300 is threadedly connected to the slider 200, the rotation of the first screw 300 is converted into linear motion of the slider 200 along the sliding direction.
[0064] Example 5,
[0065] Reference Figures 6-7This is the fifth embodiment of the present utility model. Based on the third embodiment, the difference from the fourth embodiment is that the slider 200 has a threaded hole 202, which is parallel to the sliding direction of the slider 200. It also includes a second screw 400, which is slidably disposed on the main body 100. One end of the second screw 400 is threadedly connected to the threaded hole 202, and the other end has a hand-held part.
[0066] In this embodiment, the axis of the threaded hole 202 is strictly parallel to the sliding direction of the slider 200. The second screw 400 slides through a guide structure provided on the main body 100, such as a guide groove. One end of the second screw 400 is tightly threaded to the threaded hole 202 of the slider 200, and the shape and size of the handle at the other end are designed to facilitate the operator's grip and application of force.
[0067] In practical use, the operator holds the handheld part and pushes or pulls the second screw 400. Due to the threaded connection between the second screw 400 and the slider 200, the slider 200 will slide along the main body 100. The cooperation between the second screw 400 and the threaded hole 202, as well as the design of the handheld part, allows the operator to control the sliding of the slider 200 more directly and conveniently, making the operation more convenient and efficient.
[0068] Furthermore, the slide 120 extends through the end of the main body 100 away from the protrusion 110 and also includes a cover plate 500. The cover plate 500 is detachably mounted on the main body 100 and is used to open or close the slide 120. The cover plate 500 has a through hole 501, the axis of which is collinear with the axis of the threaded hole 202.
[0069] In this embodiment, the groove 120 passes through the end of the main body 100 away from the protrusion 110, forming an opening.
[0070] The cover plate 500 is installed on the main body 100 by means of detachable connection such as screws and clips. When it is necessary to install or remove the slider 200, the cover plate 500 is removed to open the slide groove 120; during normal use, the cover plate 500 is installed to close the slide groove 120 to ensure the stability and safety of the slider 200 sliding.
[0071] The diameter of the through hole 501 on the cover plate 500 matches the diameter of the threaded hole 202, and the axis of the through hole 501 is collinear with the axis of the threaded hole 202 to ensure that the second screw 400 can pass smoothly through the cover plate 500 and connect with the threaded hole 202.
[0072] Similarly, based on Embodiment 2, the through hole 501 on the cover plate 500 ensures that the first screw 300 can pass through smoothly, and the cover plate 500 and the first screw 300 are rotatably set.
[0073] Furthermore, it also includes an elastic element 600, with its two ends respectively disposed on the cover plate 500 and the slider 200. The elastic element 600 is used to provide a force for the slider 200 to slide close to the protrusion 110.
[0074] In this embodiment, the elastic element 600 can be a spring, with one end fixed to the cover plate 500 and the other end fixed to the slider 200. In its natural state, the elastic element 600 is in a compressed state, thereby generating a spring force that causes the slider 200 to slide closer to the protrusion 110.
[0075] When the operator pushes the second screw to make the slider 200 slide away from the protrusion 110, the elastic element 600 is further compressed; when the operator releases the second screw, the elastic force of the elastic element 600 will cause the slider 200 to automatically slide closer to the protrusion 110.
[0076] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A right angle push-knot forceps for minimally invasive surgery, characterized in that, include: The clamp body (1) has a clamping part (101) and a holding part (102). A protrusion (110) is disposed at one end of the clamping part (101) away from the holding part (102). The protrusion (110) is perpendicular to the clamping part (101), and the end of the protrusion (110) away from the holding part (102) has a first groove (111).
2. The right-angle push-knot forceps according to claim 1, wherein The clamp body (1) is a double-jointed clamp.
3. The right-angle push-knot forceps according to claim 1, wherein The clamping part (101) includes: The main body (100) has the protrusion (110) disposed on the main body (100); A slider (200) is slidably disposed on the main body (100). After sliding, the slider (200) approaches the protrusion (110) or the other end of the main body (100). The sliding direction of the slider (200) is parallel to the length direction of the main body (100).
4. The right-angle push-knot forceps according to claim 3, wherein, The slider (200) has a second groove (201) at the end away from the protrusion (110).
5. The right-angle push-knot forceps according to claim 3, wherein The main body (100) has a groove (120), and the slider (200) is slidably disposed in the groove (120).
6. The right-angle push-knot forceps according to claim 5, wherein, The slider (200) has a threaded hole (202), the axis of which is parallel to the sliding direction of the slider (200), and the holding part (102) includes: The first screw (300) is rotatably mounted on the main body (100), and the first screw (300) is threadedly connected to the slider (200).
7. The right angle push-knot forceps according to claim 5, wherein, The slider (200) has a threaded hole (202) that is parallel to the sliding direction of the slider (200). The holding part (102) includes: The second screw (400) is slidably disposed on the main body (100). One end of the second screw (400) is threadedly connected to the threaded hole (202), and the other end has a hand-held part.
8. The right-angle push-knot forceps according to claim 6 or 7, wherein, The groove (120) extends through one end of the body (100) away from the protrusion (110), and further includes: A cover plate (500) is detachably mounted on the main body (100). The cover plate (500) is used to open or close the slide (120). The cover plate (500) has a through hole (501) whose axis is collinear with the axis of the threaded hole (202).
9. The right angle push-knot clamp for minimally invasive surgery according to claim 8, wherein, Also includes: An elastic element (600) is provided at both ends on the cover plate (500) and the slider (200), respectively. The elastic element (600) is used to provide the force for the slider (200) to slide close to the protrusion (110).