CN217960237U

CN217960237U - Percutaneous knife for intervertebral foramen mirror operation

Info

Publication number: CN217960237U
Application number: CN202220051355.3U
Authority: CN
Inventors: 王伯尧; 曹晓建
Original assignee: Nanjing Yiqiao Medical Instrument Co ltd
Current assignee: Nanjing Yiqiao Medical Instrument Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-12-06
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses an intervertebral foramen mirror operation is with opening dermatotome, include the handle of a knife and the tool bit that is located the handle of a knife tip, still have a cavity section of thick bamboo on the handle of a knife, this cavity section of thick bamboo comprises connecting in the semi-arc shape buckle of handle of a knife and adsorbing in the semi-arc shape bar magnetic sheet of buckle, one side ball that the buckle deviates from the bar magnetic sheet articulates on the handle of a knife lateral wall. The utility model discloses a bar magnetic sheet of semiarcuation adsorbs it on the seal wire, as the incision benchmark, utilizes the adsorption of buckle and bar magnetic sheet to say again that open skin sword laminating to seal wire department, and the doctor of being convenient for aims at the tissue and cuts a knife, and ball articulated handle of a knife can be convenient for the doctor to rotate the tool bit with the buckle and further aim at the seal wire entrance to the front and back rotation realizes the incision, and requires extremely low to using individual proficiency.

Description

Percutaneous knife for intervertebral foramen mirror operation

Technical Field

The utility model relates to a percutaneous knife for intervertebral foramen mirror operation, which belongs to the field of intervertebral foramen mirror operation.

Background

The transforaminal endoscope is similar to a spinal endoscope and is a tube provided with a light, and the tube enters an intervertebral foramen from the side or the lateral back of the body of a patient (can be flat and can be inclined), and the operation is carried out in a safe working triangular area. The operation is performed outside the intervertebral disc fibrous ring, and the protruded nucleus pulposus, nerve roots, the dural sac and the hyperplastic bone tissues can be clearly seen under the direct vision of an endoscope. Then, various grasping forceps are used for removing the protruded tissues, bone is removed under a mirror, and the damaged fibrous ring is repaired by the radio frequency electrode. The operation wound is small: the skin incision was only 7mm, as one soybean grain size, bleeding was less than 20ml, and only 1 needle was sutured after surgery. Is a minimally invasive therapy for treating the protrusion of the intervertebral disc with the least trauma and the best effect on patients in the similar operations.

In the operation process, after local anesthesia is performed, an 18G needle is inserted into the safe trigone to reach the posterolateral side of the herniated nucleus pulposus, then a 21/22G needle is inserted into the 18G needle, and 2cc of contrast developing solution mixed with the dracochineal carmine is injected into the intervertebral disc; after developing and positioning, withdrawing the 21/22G needle, inserting the guide wire, withdrawing the 18G needle along the guide wire, keeping the guide wire in the original position, and using a detachable scalpel to cut an incision of about 7mm on the skin of a needle insertion point by a doctor so that a subsequent guide rod can be inserted into the direction of the facet joint along the guide wire; however, since the guide wire is extremely small in size and soft in texture, when a surgeon performs incision, the surgeon should stretch his hand to hold the guide wire to avoid the influence of the guide wire on the incision action.

In the prior art, CN214434156U discloses a skin opening device for lumbar intervertebral foramen mirror operation, comprising: the peeling element is a blade with double blades which are symmetrically arranged; the holding part is arranged above the peeling element; and the through hole is formed in the peeling element and the holding part. Compared with the old scalpel, the double-edge arc structure can better perform peeling, but the peeling equipment is still sleeved on the guide wire for the insertion of the guide rod after peeling, so that the action of inserting the guide rod is maintained, and a sharp knife edge at the front end of the peeling equipment is easy to continue to damage the tissues of a patient and hurt a doctor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intervertebral foramen mirror operation is with opening skin sword, should open skin sword and not only solved among the prior art and opened skin equipment and be difficult to aim at the seal wire and carry out notched problem, still simplified the incision action, eliminated the influence that the proficiency caused the incision action.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides an intervertebral foramen mirror operation is with opening dermatotome, includes handle of a knife and the tool bit that is located the handle of a knife tip, still have a cavity section of thick bamboo on the handle of a knife, this cavity section of thick bamboo comprises the semi-arc shape buckle of connecting in the handle of a knife and the semi-arc shape bar magnetic sheet that adsorbs in the buckle, one side ball that the buckle deviates from the bar magnetic sheet articulates on the handle of a knife lateral wall.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, the knife handle and the knife head are integrally formed.

2. In the scheme, the cutter head ring edge is provided with the cutting edge part in an arc shape from one side to the other side.

3. In the above scheme, one side of the cutter head is provided with the pressing part without edging, and the pressing part is connected with the cutting edge part.

4. In the scheme, the side edges of the buckle plate and the strip-shaped magnetic plate are spherical.

5. In the scheme, the spherical groove is formed in the back side of the pinch plate, the turning ball is movably mounted in the spherical groove, and the part, extending out of the spherical groove, of the turning ball is connected with the knife handle.

6. In the scheme, the magnetic plate is installed on the cutter handle, and the turning ball is connected with the magnetic plate.

7. In the above scheme, the tool holder is provided with a sinking groove, and the magnetic plate is adsorbed in the sinking groove.

8. In the scheme, the strip-shaped magnetic plate is longer than the pinch plate.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model relates to a percutaneous knife is used in intervertebral foramen mirror operation through the bar magnetic sheet of semiarcuation, adsorbs it on the seal wire, as the incision benchmark, utilizes the adsorption of buckle and bar magnetic sheet to say again and open the laminating of percutaneous knife to seal wire department, and the doctor of being convenient for aims at the tissue and cuts, and ball articulated handle of a knife and buckle can be convenient for the doctor to rotate the tool bit and further aim at the seal wire entrance to the front and back rotation realizes the incision, and is extremely low to using individual proficiency requirement.

2. The utility model relates to a percutaneous knife is used in intervertebral foramen mirror operation through pressing the setting of splenium, and the doctor of being convenient for presses the incision, avoids the blade to hinder to the user.

3. The utility model relates to a percutaneous knife is used in intervertebral foramen mirror operation, through the swing joint of heavy groove and magnetic sheet, the person of facilitating the use will well cavity section of thick bamboo part detach the cutter body, makes the cutter body also can the exclusive use, and the practicality is stronger.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a percutaneous knife for endoscopic discectomy of the present invention;

fig. 2 is a schematic structural view of a hollow cylindrical portion.

Description of reference numerals: 1. a knife handle; 2. a cutter head; 21. a blade portion; 22. a pressing part; 3. a hollow cylinder; 31. buckling the plate; 311. a spherical groove; 312. a turning ball; 32. a bar-shaped magnetic plate; 4. a magnetic plate; 5. and (5) sinking the tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1: the utility model provides an intervertebral foramen mirror operation is with opening dermatotome, refers to fig. 1 and 2, includes handle of a knife 1 and the tool bit 2 that is located 1 tip of handle of a knife, still have a cavity section of thick bamboo 3 on the handle of a knife 1, this cavity section of thick bamboo 3 comprises half arcuation buckle 31 and the half arcuation bar magnetic sheet 32 that adsorbs in buckle 31 connecting in handle of a knife 1, buckle 31 deviates from one side ball of bar magnetic sheet 32 and articulates on 1 lateral wall of handle of a knife.

The knife handle 1 and the knife head 2 are integrally formed, one side of the annular edge of the knife head 2 is provided with a cutting edge part 21 in an arc shape towards the other side, one side of the knife head 2 is provided with a pressing part 22 without cutting edges, and the pressing part 22 is connected with the cutting edge part 21.

Example 2: the utility model provides an intervertebral foramen mirror operation is with opening dermatotome, refers to fig. 1 and 2, includes handle of a knife 1 and the tool bit 2 that is located 1 tip of handle of a knife, still have a cavity section of thick bamboo 3 on the handle of a knife 1, this cavity section of thick bamboo 3 comprises half arcuation buckle 31 and the half arcuation bar magnetic sheet 32 that adsorbs in buckle 31 connecting in handle of a knife 1, buckle 31 deviates from one side ball of bar magnetic sheet 32 and articulates on 1 lateral wall of handle of a knife.

The knife handle 1 and the knife head 2 are integrally formed, a cutting edge part 21 is formed on one side of the annular edge of the knife head 2 towards the other side in an arc mode, a pressing part 22 which is not edged is arranged on one side of the knife head 2, and the pressing part 22 is connected with the cutting edge part 21.

The side edges of the buckle plate 31 and the bar-shaped magnetic plate 32 are spherical, and the bar-shaped magnetic plate 32 is longer than the buckle plate 31.

The back side of the buckle plate 31 is provided with a spherical groove 311, a direction-changing ball 312 is movably arranged in the spherical groove 311, and the part of the direction-changing ball 312 extending out of the spherical groove 311 is connected with the knife handle 1.

A magnetic plate 4 is arranged on the knife handle 1, and the direction-changing ball 312 is connected with the magnetic plate 4.

The knife handle 1 is provided with a sinking groove 5, and the magnetic plate 4 is absorbed in the sinking groove 5.

Adopt above-mentioned scheme, through the bar magnetic sheet of semiarchy shape, adsorb it on the seal wire, as the incision benchmark, utilize buckle and bar magnetic sheet's adsorption effect to say the laminating of dermatotome again to seal wire department, the doctor of being convenient for aims at the tissue and cuts a knife, and ball articulated handle of a knife and buckle can be convenient for the doctor to rotate the tool bit and further aim at the seal wire entrance to the front and back rotation realizes the incision, and is extremely low to using individual proficiency requirement.

In addition, through the setting of pressing the portion, the doctor of being convenient for presses the incision, avoids the blade to hinder the user.

In addition, through the swing joint of heavy groove and magnetic sheet, the user of being convenient for separates the cutter body with cavity section of thick bamboo part, makes the cutter body also can the exclusive use, and the practicality is stronger.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides an intervertebral foramen mirror operation is with opening skin sword, its characterized in that, includes handle of a knife (1) and tool bit (2) that are located handle of a knife (1) tip, still have a cavity section of thick bamboo (3) on handle of a knife (1), this cavity section of thick bamboo (3) constitute by connecting in half arcuation buckle (31) of handle of a knife (1) and adsorbing in half arcuation bar magnetic plate (32) of buckle (31), buckle (31) deviate from one side ball of bar magnetic plate (32) and articulate on handle of a knife (1) lateral wall.

2. The percutaneous incision knife for intervertebral foramen mirror surgery according to claim 1, characterized in that the knife handle (1) and the knife head (2) are integrally formed.

3. The percutaneous knife for the endoscopic discectomy according to claim 1, wherein the cutting edge portion (21) is formed in an arc shape from one side of the edge of the knife head (2) to the other side.

4. The percutaneous incision knife for endoscopic discectomy, according to claim 3, wherein the knife head (2) has an un-edged pressing portion (22) disposed on one side thereof, and the pressing portion (22) is connected to the cutting edge (21).

5. The percutaneous knife for the endoscopic discectomy, according to claim 1, wherein the lateral edges of the buckle plate (31) and the bar-shaped magnetic plate (32) are spherical.

6. The percutaneous scalpel for the endoscopic discectomy, according to claim 1, wherein the pinch plate (31) is provided with a spherical groove (311) at the back side, a direction-changing ball (312) is movably mounted in the spherical groove (311), and the part of the direction-changing ball (312) extending out of the spherical groove (311) is connected with the scalpel handle (1).

7. The percutaneous incision knife for the intervertebral foramen mirror operation according to claim 6, wherein a magnetic plate (4) is installed on the knife handle (1), and the direction changing ball (312) is connected with the magnetic plate (4).

8. The percutaneous knife for the intervertebral foramen mirror operation according to claim 7, characterized in that the knife handle (1) is provided with a sinking groove (5), and the magnetic plate (4) is absorbed in the sinking groove (5).

9. The percutaneous knife for the endoscopic discectomy, according to claim 7, wherein the bar-shaped magnetic plate (32) is longer than the buckle plate (31).