CN114767222A - Tendon loosening push broach - Google Patents

Abstract

The application relates to a tendon stripping apparatus, especially relates to a tendon release push broach, and its technical scheme main points are: the cutting blade comprises a blade and a cutting edge positioned at one end of the blade, wherein guide pieces positioned at one side or two sides of the blade are arranged on the blade, the guide pieces extend along the length direction of the blade, and an included angle is formed between the extending direction of the guide pieces and the extending direction of the cutting edge; the purpose of reducing the size of skin and subcutaneous tissue wounds generated by the tendon relaxing operation is achieved.

Description

Tendon release push broach

Technical Field

The application relates to a tendon stripping instrument, in particular to a tendon loosening push broach.

Background

Tendon adhesion occurs because tendon is easy to grow together with surrounding tissues after being injured, and the tendon adhesion causes the obstruction of the activity of the dominated limb and influences the activity degree of the tendon; a commonly used treatment is tenolysis, i.e. the tendon is peeled back from the surrounding tissue to restore mobility to the tendon and the limb being innervated.

A tendon relaxing operation recorded in the related art is to perform local infiltration anesthesia or nerve block anesthesia, perform routine disinfection and lay a sterile towel sheet after the anesthesia is successful, then sequentially cut the skin and the subcutaneous tissue to expose the tendon sheath, cut the tendon sheath acutely with a blade, check whether the tendon is blocked and completely relax the tendon with the blade, and finally wash and suture the wound and perform sterile dressing and bandaging.

In view of the above-mentioned related art solutions, the inventors found that: due to the requirement of surgical operation, the wound of skin, namely subcutaneous tissue, needs to cover at least the full length of the tendon to be released, so that the generated wound is large, the wound healing and the healing beauty of a patient after operation are affected, and a long clinical operation time is needed.

Disclosure of Invention

In order to reduce the size of skin and subcutaneous tissue wounds generated by tendon release surgery, the application provides a tendon release push-type broach.

The application provides a tendon release push broach adopts following technical scheme:

the utility model provides a tendon release push broach, includes the blade and is located the cutting edge of blade one end, sets up the guide that is located blade one side or both sides on the blade, and the guide extends along the length direction of blade, and the extending direction of guide and the extending direction of cutting edge have the contained angle.

By adopting the technical scheme, the operation visual field in the subcutaneous tissue is usually acquired by inserting the endoscope into the wound in the minimally invasive surgery, the guide sleeve with openings at two ends is sleeved outside the endoscope, and the circumferential surface of the guide sleeve is provided with a through guide groove; when an operation is performed, a minimally invasive incision is cut on skin and subcutaneous tissues, an endoscope sleeved with a guide sleeve is inserted into the minimally invasive incision, a guide piece is inserted into a gap between the inner wall of the guide sleeve and the outer wall of the endoscope, a blade is arranged in the guide groove in a penetrating manner, the blade edge is aligned to the part, adhered between a tendon to be loosened and surrounding tissues, the blade is pushed to enable the blade edge to move to the part, adhered between the tendon and the surrounding tissues, in the process, the guide piece slides between the guide sleeve and the endoscope, the inclination of the blade is limited by matching with the groove wall of the guide groove, and the blade can accurately and stably peel off the tendon; the application, in conjunction with an endoscope-based minimally invasive procedure, reduces the size of skin and subcutaneous tissue wounds created by tendon release surgery.

Optionally, the cutting edge has a cutting edge recessed towards the inside of the blade, and the cutting edge comprises a first cutting edge section and a second cutting edge section which are respectively positioned at two sides of the cutting edge.

By adopting the technical scheme, the part adhered between the tendon and the surrounding tissues is positioned in the knife edge in the loosening process, the first blade section and the second blade section effectively limit the part between the first blade section and the second blade section, and the adhered part is prevented from deviating to one side of the knife edge and extruding.

Optionally, one side of the blade, which is away from the guide member, is provided with a covered edge, and the covered edge covers the side edge of the blade.

By adopting the technical scheme, unnecessary damage to peripheral tissues of tendons to be loosened is greatly reduced by the side edges of the hard blades.

Optionally, the tipping extends to the side of the cutting edge facing away from the blade.

Through adopting above-mentioned technical scheme, bordure the tip and contradict at the tendon or peripheral tissue first, bordure the cooperation guide and will treat that the position restriction that the release is between the two, and then realize that the bonding position is accurate to be sent to the edge of a knife in, reduced the possibility that the cutting edge produced the offset for the bonding position.

Optionally, a handle is arranged on the wrapping edge, one side of the handle, which is far away from the guide piece, is a force application surface, and when pressure and thrust are simultaneously applied to the force application surface, friction force along the extension direction of the guide piece is generated on the force application surface.

Through adopting above-mentioned technical scheme, when needs promote blade and the guide member along the axial displacement formula of uide bushing, through pressing and flat push handle so that the handle produces the frictional force along the guide member extending direction, this frictional force is the power realization and is provided the power that guide member and blade removed for power.

Optionally, one side of the wrapping edge, which is away from the guide piece, is an arc surface.

By adopting the technical scheme, the damage of the edge covering to subcutaneous tissues is reduced.

Optionally, the end face of the end of the covering edge close to the cutting edge is a guide end face, a top guide face located on one side of the covering edge away from the guide part is arranged on the covering edge, the top guide face passes through the guide end face, and the guide part is gradually kept away from the top guide face along the direction gradually keeping away from the guide end face.

Through adopting above-mentioned technical scheme, lie in the tissue of borduring keeping away from guide one side with gluing the position and push away to the direction of keeping away from the cutting edge, prevent that the cutting edge from causing unnecessary damage to surrounding tissue.

Optionally, the end face of the end of the covering edge close to the cutting edge is a guide end face, two lateral guide faces respectively located on two sides of the covering edge in the width direction are arranged on the covering edge, the lateral guide faces pass through the guide end face, and the lateral guide faces are gradually far away from the other lateral guide face along the direction gradually far away from the guide end face.

Through adopting above-mentioned technical scheme, the tissue that will glue the position and be located bordure both sides is pushed open to the both sides of cutting edge, prevents that the cutting edge from causing unnecessary damage to surrounding tissue.

Optionally, the end of the guide adjacent the cutting edge extends to the side of the cutting edge facing away from the blade.

By adopting the technical scheme, when the blade is arranged on the guide sleeve, the end part of the guide piece is inserted into the guide sleeve, two sides of the guide piece are abutted against the inner wall of the guide sleeve, and then the end part of the blade is aligned to the guide groove under the visual condition; if the end part of the guide piece is positioned on one side of the cutting edge close to the blade, the operation sequence is to align the cutting edge with the guide groove, at the moment, the position relation between the end part of the guide piece and the inner wall of the guide sleeve can be known only by considering observation, and the guide piece is positioned on one side of the blade deviating from the sight of a doctor, so that the position relation between the guide piece and the guide sleeve is difficult to adjust under the condition of limited sight; in addition, the guide piece extends out of the blade, so that the blade is prevented from injuring people in the conveying process, and the tip of the blade is prevented from scratching the inner wall of the endoscope or the guide sleeve in the sliding process of the blade in the guide groove.

In summary, the present application has the following technical effects:

1. the size of skin and subcutaneous tissue wounds generated by tendon relaxing operation is reduced by arranging the blade, the cutting edge and the guide piece and matching with the minimally invasive operation based on the endoscope;

2. the edge, the top guide surface and the lateral guide surface are arranged, so that the adhesion part between the tendon and the surrounding tissue is pushed away in the direction away from the cutting edge, and the unnecessary damage of the cutting edge to the surrounding tissue is prevented;

3. through making bordure and extending to the one side that the cutting edge deviates from the blade, bordure the tip and conflict on tendon or peripheral tissue earlier, bordure the outer wall of cooperation uide bushing and will treat the position restriction of release between the two, and then realize that the adhesion position is accurate to be sent to the edge of a knife in, reduced the cutting edge for the possibility that the adhesion position produced positional deviation.

Drawings

Fig. 1 is a schematic view of the overall structure of a tendon loosening push-type broach in an embodiment of the present application;

fig. 2 is a schematic structural view of a tendon release push broach in an embodiment of the present application when mounted on a guide sleeve;

fig. 3 is a front view of the tendon release push broach in the embodiment of the present application.

In the figure, 1, a blade; 2. a blade; 3. a guide member; 4. a knife edge; 5. a first blade section; 6. a second blade section; 7. edge covering; 8. a handle; 9. a guide end face; 10. a top guide surface; 11. a lateral guide surface; 12. a guide sleeve; 13. a guide groove; 14. an endoscope.

Detailed Description

In the description of the present application, it should be noted that the terms "close", "far", "away", and the like are relative relationships shown in the drawings, and are used only for convenience of description and simplification of the description, but do not indicate or imply that the process or module referred to must have a specific orientation, state, and operation, and therefore, should not be construed as limiting the invention.

The present application is described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, the present application provides a tendon loosening push broach, including a rectangular blade 1, a cutting edge 2 located at an end of the blade 1, and a guide 3 disposed on a long edge of one side of the blade 1, where the guide 3 is injection molded on the blade 1, the guide 3 may be in a shape of a solid column, an arc plate, or a straight plate, in this embodiment, the guide 3 is a straight guide plate perpendicular to the blade 1, and the straight guide plate extends to two sides of the blade 1; wherein the extension direction of the cutting edge 2 forms an angle with the extension direction of the length of the blade 1.

Referring to fig. 2, before performing the tendon relaxing surgery, a minimally invasive wound is made on the skin of the patient for insertion of anendoscope 14, which is commonly used in minimally invasive surgery; before theendoscope 14 is inserted into the wound, aguide sleeve 12 needs to be sleeved and fixed on theendoscope 14, the diameter of theguide sleeve 12 is larger than that of theendoscope 14, a gap for embedding the guide piece 3 exists between the inner wall of theguide sleeve 12 and the peripheral surface of theendoscope 14, taking a guide straight plate as an example, after the guide straight plate is inserted into the gap, two side edges of the guide straight plate abut against the inner wall of theguide sleeve 12, and one side of the guide straight plate, which is far away from the blade 1, is attached to the peripheral surface of theendoscope 14; the circumferential surface of theguide sleeve 12 is provided with aguide groove 13 extending along the radial direction of the guide sleeve, theguide groove 13 is communicated with the inner side and the outer side of theguide sleeve 12 and penetrates through the end faces of the two ends of theguide sleeve 12, and the width of theguide groove 13 is equal to the thickness of the blade 1.

Referring to fig. 1 and 2, after theendoscope 14 and theguide sleeve 12 are inserted into the minimally invasive opening, theendoscope 14 is used to observe the internal conditions of subcutaneous tissues and the like, and the port of theendoscope 14 is aligned with the adhesion part to be released, then the blade 1 and the guide piece 3 which are installed on theguide sleeve 12 in advance are pushed, so that the blade edge 2 continuously moves towards the direction close to the adhesion part in theguide groove 13, at the moment, the guide plate translates between theguide sleeve 12 and theendoscope 14 until the blade edge 2 moves for the full length between the tendon and the surrounding adhesion tissues, and then the adhesion part between the tendon and the surrounding tissues is peeled off, compared with the prior art in which a larger wound is cut on the skin and the subcutaneous tissues so that the adhesion part to be released is completely exposed to the visual field of a doctor, the application can realize tendon peeling off through a minimally invasive wound, and the wound can be shortened by two thirds; in addition, this application need not utilize the scalpel to draw in gluing the reciprocal line of position and move, realizes the accurate cutting of cutting edge 2 with the help of the cooperation of blade 1 andguide way 13, guide 3 and uide bushing 12, and the single passes blade 1 and can realize peeling off of tendon, has shortened operation time greatly.

Referring to fig. 1, in order to prevent unnecessary damage to surrounding tissues after the side of the blade 1 away from the guide 3 is inserted into subcutaneous tissues, a long edge of the side of the blade 1 away from the guide 3 is injection molded with a coverededge 7 that completely covers the side of the blade 1, and the coverededge 7 can be made of medical silica gel, plastics, resin and other materials to prevent the side of the blade 1 from contacting human tissues; furthermore, one side of the wrappingedge 7, which is far away from the blade 1, is an arc surface, so that the sharp part of the wrappingedge 7 is reduced, and the damage of the wrappingedge 7 to surrounding tissues is prevented.

Referring to fig. 1 and 3, aconcave knife edge 4 is arranged on one side of the knife edge 2, which is far away from the blade 1, the knife edge 2 comprises afirst edge section 5 and a second edge section 6 which are respectively arranged on two sides of theknife edge 4, an included angle is formed between thefirst edge section 5 and the second edge section 6, an arc-shaped transition edge section is arranged at a transition position between thefirst edge section 5 and the second edge section 6, thefirst edge section 5 is arranged close to the edge covering 7, and the second edge section 6 is arranged close to the guide piece 3; after theendoscope 14 aims at the end part of the adhering part, the blade 1 is pushed to enable theknife edge 4 to move to the end part of the adhering part, the adhering part is clamped between thefirst blade section 5 and the second blade section 6, and in the moving process of the blade 1, the adhering part is limited between thefirst blade section 5 and the second blade section 6 at any time, so that the adhering part is effectively prevented from being clamped between the knife edge 2 and the wrappingedge 7 or between the knife edge 2 and the guide piece 3.

Referring to fig. 2 and 3, further, theedge 7 extends to the side of the blade edge 2 facing away from the blade 1, and the other end of theedge 7 is flush with the end of the blade 1 facing away from the blade edge 2, that is, the length of theedge 7 is greater than the total length of the blade 1 and the blade edge 2; after the guide sleeve 12, theendoscope 14 and the push broach in the application are inserted into a minimally invasive wound, theguide sleeve 12 and the guide piece 3 are positioned on one side of a tendon departing from the skin, the cutting edge 2 is aligned to the end part of the adhesion part, the end part of the coverededge 7 extending out of the cutting edge 2 is tightly abutted to one side of the tendon close to the skin, the coverededge 7 is matched with the outer wall of theguide sleeve 12 to limit the part to be loosened between the two parts, the adhesion part can be accurately sent to thecutting edge 4, in addition, in the process of pushing the blade 1, as the coverededge 7 keeps the constantly fitting relation with the tendon, the coverededge 7 slides along the surface of the tendon in the moving process of the blade 1 and adjusts the inclination angle, the blade 1 further adjusts the inclination angle relative to the trend of the tendon without the need of a doctor to adjust the angle of the blade 1 according to the feedback influence of theendoscope 14 and hand feeling, the stripping of the tendon can be more accurate and efficient.

Referring to fig. 2 and 3, an end surface of thecovering edge 7 close to the cutting edge 2 is a guide end surface 9, atop guide surface 10 is processed on one side of thecovering edge 7 away from the blade 1, namely on an arc surface of thecovering edge 7, thetop guide surface 10 passes through the guide end surface 9, and thetop guide surface 10 is obliquely arranged along a direction gradually far away from the guide end surface 9 and a direction far away from the blade 1; the guide end surface 9 contacts with the surrounding tissues, thetop guide surface 10 pushes the surrounding tissues in front of the guide end surface 9 away from the blade 1, and the surrounding tissues at the end part of the edge covering 7 are prevented from contacting with the blade 2 to cause unnecessary damage; in addition, twolateral guide surfaces 11 respectively positioned at two sides of thetop guide surface 10 are processed on the edge-coverededge 7, and thelateral guide surfaces 11 can effectively discharge the peripheral tissues positioned at two sides of the edge-coverededge 7 to two sides of the edge-coverededge 7, so that the peripheral tissues are prevented from contacting the blade 2 and being cut and damaged by the blade 2.

Referring to fig. 1, a handle 8 is arranged at one end of the wrappingedge 7, which is far away from the cutting edge 2, the surface of the handle 8, which is far away from the blade 1, is a plane parallel to the length extension direction of the blade 1, the plane is a force application surface, friction grains are formed on the force application surface, and the extension direction of the friction grains is perpendicular to the extension direction of the guide piece 3; when the guide sleeve 12 and theendoscope 14 are inserted into subcutaneous tissue, the handle 8 is positioned outside the skin at all times, and by applying pressure to the force application surface and simultaneously applying a pushing force in the extending direction of the force application surface, a frictional force in the extending direction of the guide 3 can be generated on the force application surface, and this frictional force will serve as a motive force for moving the blade 1 and the guide 3.

With reference to fig. 2 and 3, one end of the guide 3 close to the cutting edge 2 extends to the side of the cutting edge 2 facing away from the blade 1, and the other end of the guide 3 is flush with the end of the blade 1, i.e. the length of the guide 3 is greater than the total length of the blade 1 and the cutting edge 2; when the blade 1 is installed on theguide sleeve 12, the end part of the guide member 3 is inserted into theguide sleeve 12, two sides of the guide member 3 abut against the inner wall of theguide sleeve 12, and then the end part of the blade 2 is aligned to theguide groove 13 under the visible condition, so that the guide member 3 can be inserted into theguide sleeve 12 and the blade 1 can be inserted into theguide groove 13; the design that the guide piece 3 extends out of the blade 2 prevents the blade 2 from hurting people in the conveying process, and prevents the tip of the blade 2 from scratching the inner wall of theendoscope 14 or theguide sleeve 12 in the sliding process of the blade 2 in theguide groove 13; in addition, a gap for limiting the position of the tendon to be loosened and the adhered tissue is formed between the part of the guide piece 3 extending out of the blade 2 and the part of the wrappingedge 7 extending out of the blade 2, so that the tendon and the adhered tissue are accurately conveyed to the inside of theknife edge 4.

The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.

Claims (9)

1. The utility model provides a tendon release push broach which characterized in that: including blade (1) and cutting edge (2) that are located blade (1) one end, set up guide (3) that are located blade (1) one side or both sides on blade (1), the length direction of guide (3) along blade (1) extends, and there is the contained angle in the extending direction of guide (3) and cutting edge (2).

2. The tendon loosening pushing broach according to claim 1, wherein: the cutting edge (2) is provided with a cutting edge (4) which is sunken towards the inside of the blade (1), and the cutting edge (2) comprises a first cutting edge section (5) and a second cutting edge section (6) which are respectively positioned at two sides of the cutting edge (4).

3. The tendon relaxing push-type broach according to claim 1, characterized in that: one side of the blade (1) departing from the guide piece (3) is provided with a wrapping edge (7), and the wrapping edge (7) is arranged to cover the side edge of the blade (1).

4. The tendon loosening pushing broach according to claim 3, wherein: the edge (7) extends to the side of the cutting edge (2) facing away from the blade (1).

5. The tendon loosening pushing broach according to claim 3, wherein: and a handle (8) is arranged on the wrapping edge (7), one side of the handle (8) departing from the guide piece (3) is a force application surface, and when pressure and thrust are simultaneously applied to the force application surface, friction force along the extension direction of the guide piece (3) is generated on the force application surface.

6. The tendon relaxing push-type broach according to claim 3, characterized in that: one side of the edge covering (7) departing from the guide piece (3) is an arc surface.

7. The tendon relaxing push-type broach according to claim 4, which is characterized in that: bordure (7) and be close to the one end terminal surface of cutting edge (2) for leading terminal surface (9), have on bordure (7) to be located bordure (7) and deviate from top spigot surface (10) of guide (3) one side, top spigot surface (10) are through leading terminal surface (9), and guide (3) are kept away from gradually along the direction of keeping away from leading terminal surface (9) to top spigot surface (10).

8. The tendon loosening pushing broach according to claim 4, wherein: the end face of one end, close to the cutting edge (2), of the wrapping edge (7) is a guide end face (9), two lateral guide faces (11) which are located on two sides of the width direction of the wrapping edge (7) respectively are arranged on the wrapping edge (7), the lateral guide faces (11) pass through the guide end face (9), and the lateral guide faces (11) are gradually far away from the other lateral guide face (11) along the direction which is gradually far away from the guide end face (9).

9. The tendon relaxing push-type broach according to claim 1, characterized in that: one end of the guide piece (3) close to the cutting edge (2) extends to one side of the cutting edge (2) departing from the blade (1).

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