CN216495433U - Retractor for skin fascia incision - Google Patents

Abstract

The utility model provides a retractor for skin fascia incision, and relates to the technical field of medical instruments. The skin fascia incision retractor comprises two rotating arms which are hinged with each other, wherein the hinged parts of the rotating arms are divided into a first section and a second section, the first sections of the two rotating arms are kneaded, and the second sections of the two rotating arms can be attached to each other; the second sections of the two rotating arms are provided with flaring baffles, and the flaring baffles extend along the length direction vertical to the rotating arms; a pushing spring is arranged between the first sections of the two rotating arms. According to the skin fascia incision retractor, the first sections of the two rotating arms are pinched, the distance between the two flaring baffles is short, the two flaring baffles are easy to place into an incision, and the first sections of the two rotating arms are loosened, so that the two flaring baffles can be far away from each other under the action of the pushing spring, and the incision retracting operation is realized.

Description

Retractor for skin fascia incision

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a retractor for skin fascia incision.

Background

Lumbar intervertebral disc protrusion (LDH) is a common and frequently encountered disease in spinal surgery. Minimally invasive surgery is commonly used clinically to remove the degenerated nucleus pulposus by cutting open the annulus fibrosus or enlarging the existing opening of the annulus fibrosus.

However, cutting the annulus or enlarging a breach in an existing annulus requires an annulus suture to avoid complications such as re-herniated disc which may result from the defect of the annulus.

The surgical channel needs to be arranged on the human body for suturing the fiber ring, and the conventional instrument is operated for multiple times of entering and exiting at the incision, so that the incision is easily damaged. At present, no effective incision protection device exists, and repeated scratching of the incision by surgical instruments is difficult to avoid.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a retractor for cutting a fascia on skin, which helps to solve the technical problem.

The utility model is realized by the following steps:

a retractor for skin fascia incision comprises two rotating arms hinged with each other, wherein the rotating arms are divided into a first section and a second section at the hinged position, the first sections of the two rotating arms are kneaded, and the second sections of the two rotating arms can be attached to each other; flaring baffles are arranged at the second sections of the two rotating arms, and the flaring baffles extend along the direction perpendicular to the length direction of the rotating arms; and a pushing spring is also arranged between the first sections of the two rotating arms.

When the skin fascia incision retractor is used, the first sections of the two rotating arms are firstly pinched, and the two corresponding second sections are close to each other or even attached due to the hinged relation, so that the distance between the two flaring baffles is minimum or even zero. At this point, the two flared stops are again placed in the surgical incision, and then the first sections of the two rotating arms are released. Under the effect of the elastic restoring force of the pushing spring, the first sections of the two rotating arms are far away from each other, and the two corresponding second sections are far away from each other due to the hinged relation, so that the distance between the two flaring baffles becomes the maximum, the surgical incision can be spread to meet the access of surgical instruments, and the surgical instruments are prevented from damaging the side wall of the incision. Finally, after completion of the annulus fibrosus suture, the first segment of the two rotating arms is again pinched, and the two flared flaps, which are close to or even in abutment, are removed from the surgical incision.

Furthermore, the one end of flaring baffle is connected the rotor arm is the stiff end, the flaring baffle other end is the free end, and the free end of two flaring baffles extends towards same direction. The technical effects are as follows: at the moment, the free end of one side of the flaring baffle can be stretched into the incision, and the rotating arm does not need to be inserted into the incision, so that the channel of the surgical instrument is prevented from being blocked.

Furthermore, the end sections of the two flaring baffles are both in a bent shape, and the end sections of the flaring baffles are bent towards the direction far away from the other flaring baffle. The technical effects are as follows: the tail ends of the flaring baffles are bent, and the rest parts are still straight, so that the skin fascia incision retractor can be prevented from driving the two flaring baffles to be close to each other under the oppression of an incision, the two sides of the incision can be hooked by utilizing the bent tail end structure, and the skin fascia incision retractor is prevented from slipping and separating from the incision.

Further, the pushing spring is a compression spring, and two ends of the compression spring are respectively connected with the first sections of the two rotating arms. The technical effects are as follows: the compression spring has elastic thrust of recovering to the original state after elastic compression, and pushes the two rotating arms to be away from each other.

Further, the pushing spring is a spring piece; one end of the spring piece is arranged on the first section of one rotating arm, and the other end of the spring piece faces the first section of the other rotating arm. The technical effects are as follows: the spring leaf self has elastic deformation restoring force, can keep away from each other two rotor arm promotion that are close to, laminate. In addition, the spring piece is more convenient to install and fix on the rotating arm.

Furthermore, a limiting ejector rod is further arranged between the first sections of the two rotating arms, one end of the limiting ejector rod is fixed to the first section of one rotating arm, and the other end of the limiting ejector rod faces the first section of the other rotating arm. The technical effects are as follows: the limiting ejector rod can prevent the first sections of the two rotating arms from being in complete contact, and the distance between the two flaring baffles is prevented from being too small.

The device further comprises a slotted pipe barrel, wherein a strip-shaped through groove is formed in the side wall of the slotted pipe barrel, and the strip-shaped through groove extends along the axial direction of the slotted pipe barrel. The technical effects are as follows: the slotted pipe barrel can prevent the flaring baffle from damaging the cut when the two rotating arms and the flaring baffle are put in and taken out.

Further, the cross section of the slotted pipe barrel is circular or oval with a gap. The technical effects are as follows: the round or oval slotted tube barrel has smooth surface and can not cause damage to the operation incision.

Furthermore, the device also comprises a guide sliding chute, and the cross section of the guide sliding chute is semicircular; the outer edge of the starting end of the guide sliding groove is provided with a baffle, and the baffle is provided with a through hole. The technical effects are as follows: the guide chute is used for guiding the surgical instrument into the incision, and the through hole on the baffle is used for guiding the suture.

Further, the middle of the end of the guide chute protrudes forward. The technical effects are as follows: the end of the guide sliding groove protruding from the middle part is beneficial to observation, and the sharp corner of the guide sliding groove can be prevented from scratching the organs of the human body.

The utility model has the beneficial effects that:

the skin fascia incision retractor is provided with two hinged rotating arms, the front end of the retractor is provided with a flaring baffle, and the rear side of the retractor is provided with a pushing spring. When the first section of the two rotating arms is pinched, the distance between the two flaring baffles is short, the incision is easy to place, and after the first section of the two rotating arms is loosened, the two flaring baffles can be far away from each other under the action of the pushing spring, so that the incision retracting operation is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a perspective view of a first retractor for incising fascia of skin provided by the present invention;

FIG. 2 is a top view of a first skin fascia incision retractor provided by the present invention;

FIG. 3 is a top view of a second skin fascia incision retractor provided by the present invention;

fig. 4 is a schematic perspective view of a third retractor for skin fasciotomy provided by the utility model (after being placed in a slotted tube);

FIG. 5 is a perspective view of a third embodiment of a skin fasciotome retractor of the utility model (shown positioned in front of a slotted tube);

FIG. 6 is a top view of a third skin fascia incision retractor provided by the present invention;

FIG. 7 is a perspective view of a guide chute of a fourth skin fasciotome retractor of the utility model;

FIG. 8 is a cross-sectional view of a guide chute in a fourth skin fasciotome retractor of the utility model;

FIG. 9 is a schematic view of direction A in FIG. 7;

fig. 10 is a schematic view of direction B in fig. 7.

Icon: 100-a rotating arm; 110-a limit ejector rod; 200-flaring baffle plates; 300-pushing a spring; 400-slotted tubing; 410-strip-shaped through grooves; 500-a guide chute; 510-a baffle; 520-through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention that are generally described and illustrated in the figures can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Fig. 1 is a perspective view of a first retractor for incising fascia of skin provided by the present invention; FIG. 2 is a top view of a first retractor of the utility model for performing a cutaneous fascial incision; figure 3 is a top view of a second skin fascia incision retractor provided by the present invention. Referring to fig. 1 to 3, the present embodiment provides a skin fascia incision retractor, which includes two rotating arms 100 hinged to each other, wherein the rotating arm 100 is divided into a first section and a second section at the hinged position, the first section of the two rotating arms 100 is kneaded, and the second sections of the two rotating arms 100 can be attached to each other; the second section of each of the two rotating arms 100 is provided with a flaring baffle 200, and the flaring baffles 200 extend along the direction perpendicular to the length direction of the rotating arms 100; a pushing spring 300 is further disposed between the first sections of the two rotating arms 100.

In the above structure, the first section of the rotating arm 100 is held by the surgical operation, the second section of the rotating arm 100 is passively clamped or expanded, and the flare blocking plate 200 approaches or moves away from the second section of the rotating arm 100. The flaring baffle 200 is used for being placed in an incision to achieve the incision retracting effect and avoid the injury of the incision caused by surgical instruments entering and exiting the incision. The pushing spring 300 provides elastic acting force for the skin fascia incision retractor, so that the two flaring baffles 200 can be separated from each other without considering forced operation, and the incision retracting function is realized.

The working principle and the operation method of the skin fascia incision retractor of the embodiment are as follows:

when the skin fascia incision retractor is used, the first sections of the two rotating arms 100 are firstly pinched, and the two corresponding second sections are close to each other or even attached due to the hinged relation, so that the distance between the two flaring baffle plates 200 is minimum or even zero. At this point, two flared stops 200 are again placed in the surgical incision, and the first segments of the two rotating arms 100 are released. Under the effect of the elastic restoring force of the pushing spring 300, the first sections of the two rotating arms 100 are far away from each other, and the two corresponding second sections are far away from each other due to the hinged relation, so that the distance between the two flaring baffles 200 is maximized, the surgical incision can be spread to meet the access of surgical instruments, and the surgical instruments are prevented from damaging the side wall of the incision. Finally, after completion of the annulus sewing, the first segment of the two rotating arms 100 is again pinched and the two flared baffles 200, which are close to or even in close proximity, are removed from the surgical incision.

In at least one preferred embodiment, further, as shown in fig. 1, one end of flared baffle 200 is connected to rotating arm 100 as a fixed end, and the other end of flared baffle 200 is a free end; the free ends of the two flared baffles 200 extend in the same direction. In this design, the free end of one side of flared baffle 200 may extend into the incision, and rotating arm 100 need not be inserted into the incision, avoiding obstruction to the passage of the surgical instrument. Alternatively, flared baffle 200 may extend toward both sides, respectively, to provide a greater reach.

In at least one preferred embodiment, further, as shown in FIG. 1, the end segments of both flare baffles 200 are curved, with the end segment of flare baffle 200 being curved away from the other flare baffle 200. In the structure, the tail ends of the flaring baffle plates 200 are bent, and the rest parts are still arranged straightly, so that the skin fascia incision retractor can be prevented from driving the two flaring baffle plates 200 to be close to each other under the oppression of an incision, and can be prevented from slipping and separating from the incision by utilizing the bent tail end structure to 'hook' two sides of the incision.

Optionally, the two flared baffles 200 may also be configured to be gradually expanded, and at this time, the distance between the two flared baffles 200 is gradually increased from the fixed end to the free end, which is beneficial to expanding the incision size to an optional suitable size, and also can prevent the skin fascia incision retractor from slipping out of the incision.

In at least one preferred embodiment, further, as shown in fig. 3, the pushing spring 300 is a compression spring, and two ends of the compression spring are respectively connected to the first sections of the two rotating arms 100. The compression spring has resilient thrust restoring after resilient compression, pushing the two rotating arms 100 away from each other.

In at least one preferred embodiment, further, as shown in fig. 1 and 2, the pushing spring 300 is a spring plate; one end of the spring plate is disposed on the first segment of one of the pivoting arms 100, and the other end of the spring plate faces the first segment of the other pivoting arm 100. The spring plate has elastic deformation restoring force, and can push the two close and attached rotating arms 100 away from each other. In addition, the spring piece is more convenient to install and fix on the rotating arm 100.

In at least one preferred embodiment, further, as shown in fig. 1, fig. 2 and fig. 3, a spacing mandril 110 is arranged between the first sections of the two rotating arms 100, one end of the spacing mandril 110 is fixed on the first section of one rotating arm 100, and the other end of the spacing mandril 110 faces the first section of the other rotating arm 100. At this time, the limiting push rod 110 can prevent the first sections of the two rotating arms 100 from being completely contacted, and the distance between the two flaring baffles 200 is prevented from being too small.

Preferably, a finger stop ring may be further disposed on the first segment of the rotating arm 100. The finger limiting ring is beneficial to the grasping of doctors, and the phenomenon that the operation is influenced by the slipping of hands is prevented.

Fig. 4 is a schematic perspective view of a third skin fascial incision retractor according to the present invention (after the slotted tube 400 is inserted); fig. 5 is a schematic perspective view of a third skin fascial incision retractor according to the present invention (before being placed into the slotted tube 400); figure 6 is a top view of a third skin fascia incision retractor provided by the present invention. In at least one preferred embodiment, as shown in fig. 4, 5 and 6, the slotted pipe barrel 400 is further included, a strip-shaped through slot 410 is opened on a side wall of the slotted pipe barrel 400, and the strip-shaped through slot 410 extends along an axial direction of the slotted pipe barrel 400. At this point, slotted tube 400 prevents flared baffle 200 from damaging the cut when inserting and removing arms 100 and flared baffle 200.

In at least one preferred embodiment, further, as shown in fig. 4, 5, 6, the cross-section of the slotted tube 400 is circular or oval with a notch. The round or oval slotted tube 400 is smooth in surface and does not cause any damage to the surgical incision.

Fig. 7 is a perspective view of a guide chute 500 of a fourth skin fasciotome retractor of the utility model; FIG. 8 is a cross-sectional view of a guide chute 500 in a fourth skin fasciotome retractor of the utility model; FIG. 9 is a schematic view of direction A in FIG. 7; fig. 10 is a schematic view of direction B in fig. 7. In at least one preferred embodiment, further, as shown in fig. 7 to 10, a guide chute 500 is further provided, and the cross section of the guide chute 500 is semicircular; the outer edge of the start end of the guide chute 500 is provided with a baffle 510, and the baffle 510 is provided with a through hole 520. Wherein the guide chute 500 is used to guide the surgical instrument into the incision, and the through hole 520 of the barrier 510 is used to guide the suture.

In at least one preferred embodiment, further, as shown in fig. 7 and 8, the middle of the end of the guide chute 500 protrudes forward. At this moment, the end of the guide chute 500 with the convex middle part is not only beneficial to observation, but also can prevent the sharp corner of the guide chute 500 from scratching the organs of the human body.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A retractor for incising fascia of skin, comprising two rotating arms (100) hinged with each other, wherein the rotating arms (100) are divided into a first section and a second section at the hinged position, the first section of the two rotating arms (100) is kneaded, and the second sections of the two rotating arms (100) can be attached to each other; the second sections of the two rotating arms (100) are provided with flaring baffles (200), and the flaring baffles (200) extend along the length direction perpendicular to the rotating arms (100); an ejection spring (300) is further arranged between the first sections of the two rotating arms (100).

2. The retractor for skin fascia incision according to claim 1, wherein one end of the flared baffle (200) is connected to the rotating arm (100) as a fixed end, and the other end of the flared baffle (200) is a free end; the free ends of the two flaring baffle plates (200) extend towards the same direction.

3. The retractor of claim 2 wherein the end segments of both flared flaps (200) are curved, the end segments of the flared flaps (200) being curved away from the other flared flap (200).

4. The retractor for fascial incision of skin as claimed in claim 1, wherein said pushing spring (300) is a compression spring, and both ends of said compression spring are respectively connected to the first sections of said two rotating arms (100).

5. The retractor of claim 1, wherein the ejector spring (300) is a leaf spring; one end of the spring piece is arranged on the first section of one rotating arm (100), and the other end of the spring piece faces the first section of the other rotating arm (100).

6. The skin fascia incision retractor according to claim 1, wherein a spacing mandril (110) is further arranged between the first sections of the two rotating arms (100), one end of the spacing mandril (110) is fixed on the first section of one rotating arm (100), and the other end of the spacing mandril (110) faces the first section of the other rotating arm (100).

7. The retractor for fascia cutaneous incision according to claim 1, further comprising a slotted tube (400), wherein a strip-shaped through groove (410) is formed in the side wall of the slotted tube (400), and the strip-shaped through groove (410) extends along the axial direction of the slotted tube (400).

8. The retractor of claim 7 wherein the slotted tube (400) is circular or oval in cross-section with a gap.

9. The retractor for fascial incision of skin according to claim 1, further comprising a guide chute (500), wherein the cross section of said guide chute (500) is semicircular; the outer edge of the starting end of the guide sliding groove (500) is provided with a baffle (510), and a through hole (520) is formed in the baffle (510).

10. The retractor of claim 9, wherein the middle of the end of the guide chute (500) protrudes forward.

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