CN221083694U - Surgical spreader - Google Patents

Abstract

The utility model discloses an operation spreader, which belongs to the field of medical appliances and comprises a half-clamp body, a hinge shaft, an expansion claw, a fixed seat, a threaded rod, a sliding seat, a connecting rod and a conical nut. According to the utility model, the upper parts of the two half forceps bodies are operated to rotate so as to expand the lower parts of the expansion claws under the action of the hinge shafts, the expansion claws are used for expanding a wound part, the forceps bodies drive the connecting rods to rotate so as to drive the sliding seat to ascend on the threaded rod, when the expansion is in place, the conical nuts are stirred to rotate by the other finger of the hand, such as the little finger, so that the conical nuts rotate to ascend and contact with the sliding seat, the sliding seat is prevented from descending, the function of preventing the half forceps bodies from being restored is achieved, and compared with the prior art, the conical nuts can stop at any height by matching with the threaded rod in feeding, and the stepless locking of the positions of the half forceps bodies is further realized.

Description

Surgical spreader

Technical Field

The utility model relates to the field of medical instruments, in particular to a surgical spreader.

Background

Fracture reduction internal fixation is a surgical approach to treating fractures. In order to maintain good reduction and alignment, steel plates and screws are often used as internal fixtures in limb fracture surgery. Because internal fixation is often not absorbed by the human body, most of the internal fixation extraction operations are needed after the fracture is clinically healed, the internal fixation extraction operations need to cut the skin firstly, the fixation objects such as steel plates and screws are fully exposed, and after the skin is cut, the skin is pulled by using tools such as a muscle drag hook, a thyroid drag hook or a spreader to expose the fixation objects. In the clinical operation at present, under the condition that the incision of skin is smaller, the skin at the incision is spread by using the spreader, the skin tissue at the incision is prevented from automatically closing to block the view of a patient, the judgment in the operation is influenced, the skin tissue structure is prevented from being pulled outwards to set the front end of the spreader into a bent hook shape when the fixed object is taken out by using the existing spreader, but the bent hook structure is smoother, fascia, periosteum, bone tissue and other soft tissues growing on the surface of the internal fixed object cannot be fully stripped, so that the application time of the operation and the tourniquet is prolonged, the risk of operation infection is increased, and certain harm is brought to the rehabilitation and the general condition of a patient after the operation.

Among the prior art, patent publication number CN209203362U discloses a surgical spreader, during the use, first prop claw and second prop claw are closed in opposite directions and are put into incision department, the operator is opened in opposite directions through first handheld portion and second handheld portion control first prop claw and second prop claw, because first wedge sword and second wedge sword set up with the slope of outwards dorsad, in the in-process that first prop claw and second prop claw opened in opposite directions, first wedge sword and second wedge sword can be followed opening direction and peeled off fascia, periosteum, bone tissue and other soft tissue that grow in internal fixation thing surface, first wedge sword and second wedge sword are sharp, the peel effect is better, can shorten operation and tourniquet application time, reduce the risk of operation infection, be favorable to patient postoperative rehabilitation.

According to the technical scheme, the problems in the background technology are solved to a certain extent, but the supporting fixing structure adopted by the technical scheme adopts two tooth-shaped structures to be mutually meshed to realize position limitation and is limited by the size of the tooth-shaped structures, when the teeth of the tooth-shaped structures are too small, the limiting capacity between the two tooth-shaped structures can be reduced, so that the tooth-shaped structures are easy to separate from each other to influence the position fixing effect, when the tooth-shaped structures are large, although the meshing capacity is enhanced, the expanding range of the stroke position between the two teeth cannot be effectively fixed due to the level of the expanding size caused by the large teeth, and therefore, the operation supporting device capable of realizing stepless fixing is needed.

Disclosure of utility model

The utility model aims to solve the problems in the background art and designs an operation spreader.

The technical scheme includes that the surgical spreader comprises half forceps bodies, a hinge shaft, expansion claws, fixing seats, threaded rods, sliding seats, connecting rods and conical nuts, wherein the two half forceps bodies are hinged through the hinge shaft, the expansion claws are arranged at the lower ends of the half forceps bodies, the fixing seats are mounted on the hinge shaft, the threaded rods are fixed on the upper portions of the fixing seats, the sliding seats are sleeved on the threaded rods in a sliding mode, the connecting rods are respectively hinged to the two sides of the sliding seats in a rotatable mode, the outer ends of the connecting rods are hinged to the half forceps bodies in a rotatable mode, the conical nuts are sleeved on the threaded rods in a meshed and screwed mode, and the conical nuts are located below the sliding seats.

Further, the cone nut is of a cone structure with a narrow upper part and a wide lower part.

Furthermore, finger sleeves are arranged on the half forceps body, and the finger sleeves are arranged on the outer side of the upper part of the half forceps body.

Further, the friction part is arranged at the lower part of the conical nut, the friction part is of a grain structure, and the grain structure is a circle of vertical grooves distributed on the outer surface of the lower part of the conical nut.

Further, the threaded rod is provided with a limiting head, and the limiting head is fixedly arranged at the upper end of the threaded rod.

Advantageous effects

The utility model provides an operation spreader which has the following beneficial effects that through the structural design, the lower parts of expansion claws are expanded under the action of a hinge shaft by operating the upper parts of two half forceps bodies, and then the expansion claws are utilized to expand wound parts, when the operation spreader expands, the forceps bodies drive connecting rods to rotate and drive sliding seats to ascend on threaded rods, when the operation spreader expands in place, the other finger of a hand such as a little finger is utilized to stir conical nuts to rotate and then the conical nuts rotate to ascend to contact with the sliding seats, so that the sliding seats are prevented from descending, and further the function of preventing the half forceps bodies from recovering is achieved.

Drawings

Fig. 1 is a schematic view of the surgical spreader of the present utility model.

In the figure, 1, a half clamp body; 2. a hinge shaft; 3. an expansion claw; 4. a fixing seat; 5. a threaded rod; 6. a sliding seat; 7. a connecting rod; 8. a cone nut; 9. a finger glove; 10. a friction part; 11. a limiting head.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "upper/lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured/arranged," "coupled," "connected," and the like are to be construed broadly and include, for example, "connected," either fixedly, detachably, or integrally; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, the present utility model provides a technical solution: the utility model provides an operation struts ware, including half pincers body 1, articulated shaft 2, expansion claw 3, fixing base 4, threaded rod 5, sliding seat 6, connecting rod 7, taper nut 8, two half pincers body 1 are articulated through articulated shaft 2 and are connected, half pincers body 1 lower extreme is equipped with expansion claw 3, install fixing base 4 on the articulated shaft 2, fixing base 4 upper portion is fixed with threaded rod 5, the slip cap has sliding seat 6 on the threaded rod 5, the rotatable articulated connecting rod 7 that has respectively in sliding seat 6 both sides, the rotatable articulated of connecting rod 7 outer end and half pincers body 1, the meshing is twisted the cover and is equipped with taper nut 8 on the threaded rod 5, taper nut 8 is located sliding seat 6 below.

In the utility model, the cone nut 8 is of a cone structure with a narrow upper part and a wide lower part, and the upper part of the cone nut 8 does not interfere with the movement track of the connecting rod 7.

In the utility model, the finger sleeve 9 is arranged on the half forceps body 1, and the finger sleeve 9 is arranged on the outer side of the upper part of the half forceps body 1, so that the finger sleeve 9 is convenient for pinching or expanding the upper part of the half forceps body 1 by fingers.

In the utility model, the friction part 10 is arranged at the lower part of the cone nut 8, the friction part 10 is of a grain structure, the grain structure is a circle of vertical grooves distributed on the outer surface of the lower part of the cone nut 8, and further the friction part 10 is convenient for poking and rotating by a finger.

In the utility model, the threaded rod 5 is provided with the limiting head 11, and the limiting head 11 is fixedly arranged at the upper end of the threaded rod 5, so that the sliding seat 6 on the threaded rod 5 is limited not to be separated.

In this embodiment:

The lower parts of the expansion claws 3 are expanded under the action of the hinge shaft 2 by operating the upper parts of the two half forceps bodies, and then the wound part is expanded by the expansion claws 3, when the expansion is carried out, the forceps bodies drive the connecting rod 7 to rotate, and then drive the sliding seat 6 to ascend on the threaded rod 5, when the expansion is carried out in place, the conical nut 8 is stirred by the other finger of the hand, such as the little finger, to rotate, and then the conical nut 8 rotates to ascend to contact with the sliding seat 6, so that the sliding seat 6 is prevented from descending, the function of preventing the half forceps bodies from being restored is achieved, and compared with the prior art, the conical nut 8 is matched with the threaded rod 5 to have the function of stopping at any height, and further stepless locking of the position of the half forceps bodies 1 is realized.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an operation struts ware, includes half pincers body (1), articulated shaft (2), expansion claw (3), fixing base (4), threaded rod (5), sliding seat (6), connecting rod (7), cone nut (8), its characterized in that, two half pincers body (1) are articulated through articulated shaft (2), half pincers body (1) lower extreme is equipped with expansion claw (3), install fixing base (4) on articulated shaft (2), fixing base (4) upper portion is fixed with threaded rod (5), the slip cap has sliding seat (6) on threaded rod (5), sliding seat (6) both sides rotatable articulated respectively have connecting rod (7), connecting rod (7) outer end and half pincers body (1) rotatable articulated, the interlock is twisted the cover and is equipped with cone nut (8) on threaded rod (5), cone nut (8) are located sliding seat (6) below.

2. Surgical distractor according to claim 1, characterized in that the cone nut (8) has a cone-shaped structure with a narrow upper part and a wide lower part.

3. Surgical spreader according to claim 1, characterized in that the half-pincer body (1) is provided with a finger-stall (9), the finger-stall (9) being provided on the upper outer side of the half-pincer body (1).

4. The surgical spreader of claim 1, wherein the cone nut (8) has a friction portion (10) at a lower portion thereof, the friction portion (10) having a grain structure, the grain structure being a circle of vertical grooves distributed on an outer surface of the lower portion of the cone nut (8).

5. Surgical spreader according to claim 1, characterized in that the threaded rod (5) is provided with a limit head (11), the limit head (11) being fixedly mounted on the upper end of the threaded rod (5).