DE202021106703U1 - Sheath for a retractor for spinal surgery - Google Patents

Abstract

Sheath for a retractor for spinal surgery, characterized in that the sheath comprises a plate-shaped sheath body made of an elastic material, the plate-shaped sheath body being constructed from a plurality of sheath units, one side of the sheath unit being provided with an adhesive layer, with a non-stick paper on of the adhesive layer, the other side of the shell unit being provided with a plurality of horn-like projections, and the opening of the horn-like projection facing the outside of the shell unit.

Description

TECHNICAL AREA

The present invention relates to the technical field of medical instruments and more particularly to a sheath for a retractor for spinal surgery.

STATE OF THE ART

With existing spinal surgery, such as using pedicle screw implantation to perform posterior spinal nail surgery on the patient, it is often necessary to use an exposure device (such as a retractor) to pull on both sides of the spine, thereby exposing the entry point of the needle at the pedicle. However, since the location of the needle's entry point must be constantly exposed and the existing retractors are often made of hard materials, during the operation, the retractor tears the muscles of the retractor for a long time, resulting in injury to the patient's muscle and a feeling of pain comes for the patient.

CONTENT OF THE PRESENT INVENTION

Object of the invention: the purpose of the present invention is to provide a sheath for a retractor for spinal surgery, in view of the disadvantages of the prior art, which can effectively avoid muscle damage caused by the retractor and which is characterized by simple, fast and safe operation excellent.

Technical solution: The invention discloses a sheath for a retractor for spinal surgery, comprising a plate-shaped sheath body made of an elastic material, the plate-shaped sheath body being composed of a plurality of sheath units, one side of the sheath unit being provided with an adhesive layer, with a non-stick paper is provided on the adhesive layer, the other side of the shell unit is provided with a plurality of horn-like projections, and the opening of the horn-like projection faces the outside of the shell unit.

It is preferably provided that the other side of the casing unit is uniformly provided with a multiplicity of horn-like projections.

It is preferably provided that the thickness of the jacket unit is not more than 1 mm; the height of the horn-like protrusion is not more than 1mm and the maximum width is not more than 2mm.

It is preferably provided that the opening surface of the horn-like projections is provided with a plurality of gaps evenly distributed in its axial direction.

Provision is preferably made for the gaps to be linear gaps.

Provision is preferably made for the gap to be a U-shaped gap.

Provision is preferably made for the gap to be a V-shaped gap.

It is preferably provided that the elastic material is rubber or silica gel.

Provision is preferably made for the jacket units to be arranged on the same non-stick paper.

It is preferably provided that the height of the horn-like projection is 0.5 to 0.8 mm and the maximum width is 1 to 1.5 mm.

Compared with the prior art, the present invention has the following advantageous effects: the present invention is able to achieve a cushioning effect between the retractor and the muscle, reduce the magnitude of the force of the retractor on the muscle, and reduce direct wear of the retractor to the muscle, and the present invention can also effectively avoid muscle damage caused by the retractor, which features simple, fast and safe operation.

character list

• 1 12 is a structural diagram of a sheath for a retractor for spinal surgery according to an embodiment of the present invention.
• 2 12 is a plan view of a sheath for a retractor for spinal surgery according to an embodiment of the present invention.
• 3 13 is a structural diagram of a first embodiment of a horn-like protrusion in embodiments of the present invention.
• 4 13 is a structural diagram of a second embodiment of a horn-like protrusion in embodiments of the present invention.
• 5 13 is a structural diagram of a third embodiment of a horn-like protrusion in embodiments of the present invention.

1

Manteleinheit,

2

Klebstoffschicht,

3

Antihaftpapier,

4

hornartiger Vorsprung,

5

Spalt.

In the figures:

1

jacket unit,

2

adhesive layer,

3

non-stick paper,

4

hornlike protrusion,

5

Gap.

DETAILED DESCRIPTION

The technical solution of the present invention is described below in detail through specific embodiments and accompanying drawings, but the scope of the present invention is not limited to the embodiments.

example

1 until 2 show an embodiment of a sheath for a retractor for spinal surgery, comprising a plate-shaped sheath body made of latex material. There are a variety of forms of retractors that do not have a fixed structure. When the retractor is used as a traditional sleeve-type sheath, the retractor has a similar inwardly concave design and the sheath may not fully engage the hook, resulting in interference with muscle loading of the retractor during surgery. Therefore, the plate-shaped case body is composed of two cover units 1 with a thickness of 1 mm, and one side of the cover unit 1 is provided with an adhesive layer 2 with a release paper 3 provided on the adhesive layer 2, and two cover units 1 arranged on the same release paper 3 are. When using, the shell unit 1 can be peeled off the release paper 3, which is stuck to the retractor according to the design of the retractor, and the shell unit 1 can further be cut according to the size of the retractor, so that the shell unit 1 can be fully attached to the retractor to avoid a force obstacle through the retractor to the muscle. The jacket assembly 1 can also act as a dampener between the retractor and the muscle, reducing the magnitude of the retractor's force on the muscle and reducing direct wear of the retractor on the muscle.

In a further development, it is provided that the other side of the shell unit 1 is provided with eight horn-like projections 4 evenly, and the opening of the horn-like projection 4 faces the outside of the shell unit 1, the height of the horn-like projection 4 being 0.6 mm and the maximum width is 1mm; as a result, the concentrated action of a certain point of force of the retractor on the muscles can be dispersed, further reducing the force of the retractor on the muscles, and effectively reducing the damage caused by the retractor to the patient's muscles.

3 is another embodiment of the invention, in which on the basis of 1 until 2 the opening face of the horn-like projections 4 is provided with a plurality of slits 5 evenly distributed in its axial direction, and the shape of the slit 5 is linear. Due to the arrangement of the gap 5, when the force of the retractor passes through the sheath unit 1 onto the horn-like projection 4, the gap can further break down the resultant force into more force components, increase the force points of the muscle and injury to the patient's muscle from the retractor reduce further.

4 is another embodiment of the invention, in which on the basis of 3 the shape of the gap 5 at the horn-like projection 4 is replaced with a V-shape, and the height of the horn-like projection 4 is replaced with 0.5 mm and the maximum width with 1.2 mm.

5 is another embodiment of the invention, in which on the basis of 3 the shape of the gap 5 at the horn-like projection 4 is replaced with a U-shape, and the height of the horn-like projection 4 is replaced with 0.8 mm and the maximum width with 1.5 mm.

As described above, while the present invention has been illustrated and described with reference to certain preferred embodiments, the embodiments should not be construed as limiting the present invention in itself. Various changes in form and detail can be made without departing from the spirit and scope of the present invention as defined in the following claims.

Claims (10)

A sheath for a retractor for spinal surgery, characterized in that the sheath comprises a plate-shaped sheath body made of an elastic material, the plate-shaped sheath body being composed of a plurality of sheath units wherein one side of the shell unit is provided with an adhesive layer, a release paper is provided on the adhesive layer, the other side of the shell unit is provided with a plurality of horn-like projections, and the opening of the horn-like projection faces the outside of the shell unit is. sheathing after claim 1 , characterized in that the other side of the shell unit is uniformly provided with a plurality of horn-like projections. sheathing after claim 1 or 2 , characterized in that the thickness of the jacket unit is not more than 1mm; the height of the horn-like protrusion is not more than 1mm and the maximum width is not more than 2mm. sheathing after claim 1 or 2 , characterized in that the opening surface of the horn-like projections is provided with a plurality of gaps evenly distributed in the axial direction thereof. sheathing after claim 4 , characterized in that the gaps are linear gaps. sheathing after claim 4 , characterized in that the gap is a U-shaped gap. sheathing after claim 4 , characterized in that the gap is a V-shaped gap. sheathing after claim 1 or 2 , characterized in that the elastic material is latex or rubber or silica gel. sheathing after claim 1 or 2 , characterized in that the jacket units are arranged on the same release paper. sheathing after claim 3 , characterized in that the height of the horn-like projection is 0.5 to 0.8 mm and the maximum width is 1 to 1.5 mm.

Images