CN212592325U

CN212592325U - Nerve protection cutter for single-hole endoscope operation

Info

Publication number: CN212592325U
Application number: CN202020669617.3U
Authority: CN
Inventors: 刘英男
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-02-26
Anticipated expiration: 2030-04-27

Abstract

A nerve protection cutter for a single-hole endoscope operation relates to the technical field of surgical instruments. It comprises the following steps: the cutting knife comprises a knife bar and a blade which is arranged at the end part of the knife bar and is vertical to the knife bar; the cutting knife is movably arranged in the sleeve in a penetrating mode, and a cutting groove for the sliding cutting of the blade is formed in the sleeve along the length direction. By adopting the technical scheme, the nerve can be prevented from being injured in the cutting process, the operation is simplified, and the advantages of improving the operation safety and the operation convenience are achieved.

Description

Nerve protection cutter for single-hole endoscope operation

Technical Field

The utility model relates to the technical field of surgical instruments, concretely relates to nerve protection cutter for haplopore endoscope operation.

Background

The nerve entrapment syndrome refers to the condition that peripheral nerves are compressed by certain peripheral tissues to cause pain, sensory disturbance, dyskinesia and electrophysiological changes, and belongs to one of the syndrome of bone-fiber duct and ventricular pressure.

The treatment of this disease is mainly divided into two cases: 1. non-surgical treatment, local application of topical application, injection of corticosteroids and NSAID's reduces the inflammatory response of entrapment and relieves symptoms. However, this disease is a slowly progressive disease and rarely heals itself. 2. Surgical treatment, for patients with this disease, is often performed by cutting the bone-fiber channel by surgery to release the nerve under reduced pressure. Care should be taken at this point to avoid rough surgery, further damaging the nerve.

When in operation, the ligament layer distributed between the fat layer and the nerve layer needs to be cut, and the thickness of the ligament layer is about 4 mm. Under the observation of endoscope, the operation operator sees the two-dimensional image, the operation of ligament layer incision is carried out with endoscope and ligament cutting knife under the condition of hand, eye separation, this kind of current microscopic endoscope ligament cutting knife comprises a handle portion, blade portion and the blade portion of taking the blade edge, whole sword is slender pole appearance, the edge of a knife cut depth of cut is confirmed according to operator's application of force size completely during the cutting, therefore, if the operator experience is not enough, or the lower sword is mastered inadequately with strength, very easily cause the blade edge to cut off the nerve of hindering the ligament layer below deeply, can lead to patient paralysis when this kind of accidental injury is serious.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a neural protection cutter for haplopore endoscope operation, can avoid cutting the in-process and hinder nervous, simplify the operation, have the advantage that improves operation security and operation convenience.

In order to achieve the above object, the utility model adopts the following technical scheme: a neuroprotective cutting blade for single-port endoscopic surgery, comprising: the cutting knife comprises a knife bar and a blade which is arranged at the end part of the knife bar and is vertical to the knife bar; the cutting knife is movably arranged in the sleeve in a penetrating mode, and a cutting groove for the sliding cutting of the blade is formed in the sleeve along the length direction.

The utility model discloses a further setting, the neuroprotection cutter is still including being used for the blade stretch out in when cutting the cut groove, wear to locate just the butt in the cover pipe the butt pole of cutter arbor bottom side.

The utility model discloses a further setting, the neuroprotection cutter is still including being used for the blade rotates extremely when rotating the inslot, wear to locate in the cover pipe and the butt in the butt pole of cutting knife bottom side.

In the further arrangement of the utility model, the cross section of the sleeve is oval; the sleeve pipe is close the both ends of cutting cut groove are equipped with the confession the blade winds the cutter arbor rotates in order to be relative the sleeve pipe stretches out or the rotation groove of accomodating, the maximum diameter of cross-section is 9mm, and the minimum diameter is 4 mm.

The utility model discloses a further setting, the cutter arbor diameter is 2-3mm, the height of blade is 3-5 mm.

The utility model discloses a further setting, the sleeve pipe end still be equipped with be used for right the cutter arbor carries out spacing fixed subassembly, fixed subassembly is for rotating assembly in both sides on holding the holding rod, be used for with hold the holding rod with the action bars carries out the rotation snap ring that the cover was established.

The utility model discloses a further setting, the cutting knife with the sleeve pipe is titanium alloy material.

The utility model discloses a further setting, the cutter arbor is kept away from blade one end is equipped with the pilot mark, the pilot mark is used for instructing the blade for the position of cutting groove.

After the technical scheme is adopted, the utility model discloses beneficial effect does:

1. the utility model discloses in, through setting up the sleeve pipe and wearing to locate the intraductal cutting knife of cover to having reduced the blade and having exposed at internal area, having reduced the accidental injury risk, the confession blade that sets up on the sleeve pipe exposes and the cutting groove of removal, can control the depth of cut and the direction of cut of blade, avoids the too big or undersize of application of force and influences the operation effect, and then makes the difficult nerve that injures below the ligament layer in the operation process, improves operation security and operation convenience.

2. The utility model discloses in, the intraductal butt pole that still is equipped with of cover, butt pole are used for the butt in the cutter arbor bottom to make the blade cut the stable take out take the altitude in groove relatively, effective control cuts the degree of depth, consequently when using, the operator only need towards cut the length direction in groove apply the pulling force can, and then simplified this operation, reduced the operation degree of difficulty, do benefit to and effectively improve operation efficiency.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is another schematic structural view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is another cross-sectional view of the present invention.

Description of reference numerals: 1. a cutting knife; 11. a cutter bar; 12. a blade; 2. a sleeve; 21. cutting the groove; 22. a holding rod; 13. an operating lever; 3. a butting rod; 14. a rotating groove; 4. rotating the snap ring; 51. a first identification point; 52. and (5) second standard testing points.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.

The present embodiment relates to a nerve protection cutter for a single-hole endoscopic surgery, as shown in fig. 1 and 2, comprising: the cutting device comprises a cutting knife 1, wherein the cutting knife 1 comprises a knife bar 11 and a blade 12 which is arranged at the end part of the knife bar 11 and is vertical to the knife bar 11; the sleeve 2, the cutting knife 1 activity is worn to locate in the sleeve 2, and sleeve 2 is seted up along length direction and is supplied the cutting groove 21 that blade 12 slided the cutting. Compare in prior art's cutter, this embodiment has reduced cutting knife 1 and internal area of contact, effectively reduce the accidental injury risk, before the cutting, accomodate cutting knife 1 in sleeve pipe 2, and insert this neuroprotection cutter to waiting to cut the department and carry out position adjustment, remove cutting knife 1's blade 12 to cutting groove 21 after confirming the cutting position in, and cut along cutting groove 21, cutting groove 21 plays the control action to the cutting direction and the cutting depth of cutter, and then make the operation in-process be difficult for hindering the nerve of ligament layer below, effectively improve the operation security.

As shown in fig. 1 and 2, a holding rod 22 perpendicular to the depth direction of the cutting groove 21 extends from the end of the sleeve 2 to the outside; the tail end of the cutter bar 11 is provided with an operating rod 13 which is vertical to the height direction of the blade 12, the holding rod 22 and the operating rod 13 are both used for facilitating holding of an operation operator, wherein the holding rod 22 is also used for playing a reference role, so that an operator can conveniently adjust the orientation of the cutting groove 21 and confirm the cutting direction.

In this embodiment, as shown in fig. 4, the nerve protection cutter further includes an abutting rod 3 which is used for penetrating the sleeve 2 and abutting the bottom side of the cutting knife 1 when the blade 12 extends out of the cutting groove 21, and one side of the abutting rod 3 is matched with the bottom side of the knife bar 11, therefore, the blade 12 can stably extend out of the cutting groove 21, and is not easy to displace relative to the cutting groove 21, thereby being beneficial to ensuring that the cutting depth is consistent all the time, further simplifying the operation, reducing the operation difficulty, and being beneficial to improving the operation efficiency.

As shown in fig. 2-4, in the present embodiment, the knife bar 11 is a cylinder, and the abutting bar 3 is an arc-shaped sheet abutting against one side of the knife bar 11. The section of the sleeve 2 is oval; the two ends of the sleeve 2 close to the cutting groove 21 are provided with rotating grooves 14 for the blades 12 to rotate around the cutter bar 11 so as to extend out or accommodate relative to the sleeve 2, the maximum diameter of the section of the sleeve 2 is 9mm, the minimum diameter is 4mm, the diameter of the cutter bar 11 is 2-3mm, and the height of the blades 12 is 3-5 mm. Wherein the length of the sleeve 2 is 160mm, the length of the cutting groove 21 is 60mm, the length of the rotating grooves 14 at both ends is 10mm, the length of the cutter bar 11 is 150mm,

as shown in fig. 1 and 2, the end of the sleeve 2 is further provided with a fixing component for limiting the cutter bar 11, and the fixing component is a rotary snap ring 4 which is rotatably assembled on the holding rods 22 at two sides and used for sleeving the holding rods 22 and the operating rod 13. When ordinarily need not the use, can transversely accomodate cutting knife 1 to sleeve pipe 2 inside, rethread rotates snap ring 4 and fixes the action bars 13 of cutting knife 1 one end and the holding rod 22 of sleeve pipe 2 one end for cutting knife 1 is difficult for relative sleeve pipe 2 to take place the displacement, thereby is convenient for the equipment to accomodate and get and put. In the embodiment, the cutting knife 1 and the sleeve 2 are made of titanium alloy materials, and the titanium alloy has high strength, good corrosion resistance and high heat resistance. In other embodiments, the material may also be a medical stainless steel material or an aluminum alloy material.

As shown in fig. 2, the end of the knife bar 11 away from the blade 12 is provided with an indicator for indicating the position of the blade 12 relative to the cutting slot 21. The indication mark at least comprises a first mark point 51 and a second mark point, wherein the first mark point 51 is used for indicating that the blade 12 is arranged at the position of the far-end rotating groove 14, and the second mark point is used for indicating that the blade 12 is arranged at the position of the near-end rotating groove 14. So that the operator can quickly and accurately know the position of the blade 12 during operation and improve the operation efficiency.

Referring to fig. 1-4, before surgical incision, the knife bar 11 and the blade 12 are transversely placed inside the cannula 2 and inserted into the affected part from the external incision, during the process, a position reference can be made by the holding rod 22, so that the cutting groove 21 is aligned with the ligament layer to be cut, and then the position of the cutting knife 1 relative to the cannula 2 is adjusted by the operating rod 13, at this time, the upper indication mark of the knife bar 11 can be used for reference, when the operating rod 13 and the holding rod 22 are kept parallel and the first indication point 51 is aligned with the end of the cannula 2, it indicates that the blade 12 is aligned with the distal rotating groove 14, at this time, the knife bar 11 is rotated to extend the blade 12 from the rotating groove 14, so that the blade 12 is exposed relative to the cannula 2, and at this time, the operating rod 13 is perpendicular to the holding rod 22; for further improvement cutting effect, insert butt pole 3 inside and butt to cutter arbor 11 one end to sleeve pipe 2 again, and then make cutting knife 1 remove towards ligament layer one side, consequently blade 12 stably stretches out in cutting groove 21, and be difficult for cutting groove 21 relatively to take place the displacement, can keep cutting the degree of depth unanimous all the time, only need stimulate cutter arbor 11 during the cutting, make blade 12 cut along cutting groove 21 can, after the cutting finishes, take out butt pole 3 earlier, then confirm second identification point and sleeve pipe 2 terminal parallel and level on the cutter arbor 11, again with blade 12 from the 14 internal rotations in the rotation groove of the other end entering sleeve pipe 2, thereby cause the accidental injury to the human body when avoiding taking out this cutter after the cutting.

In other embodiments, the cross section of the sleeve 2 may be circular, the cross section of the cutter bar 11 may be semicircular, and the cross section of the abutting rod 3 may be semicircular and abuts against the cross section of the cutter bar 11.

The working principle of the utility model is as follows: in the embodiment, through setting up sleeve pipe 2 and wearing to locate sleeve pipe 2 inside cutting knife 1 to reduced blade 12 and exposed internal area, reduced the accidental injury risk, the confession blade 12 that sets up on sleeve pipe 2 exposes and the cutting groove 21 of removal, can control the depth of cut and the cutting direction of blade 12, avoid the too big or undersize of application of force and influence the operation effect, and then make difficult the nerve that injures below the ligament layer in the operation process, improve operation security and operation convenience. The butt-joint rod 3 is used for butt-joint at the bottom of the cutter bar 11, so that the blade 12 can stably extend out to a certain height relative to the cutting groove 21, the cutting depth is effectively controlled, and therefore when the cutter is used, an operator only needs to apply pulling force towards the length direction of the moving groove, the operation is simplified, the operation difficulty is reduced, and the operation efficiency is effectively improved.

The above description is only for the purpose of illustration and not limitation, and other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention should be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A neuroprotective cutting blade for use in single-port endoscopic surgery, comprising: the cutting device comprises a cutting knife (1), wherein the cutting knife (1) comprises a knife bar (11) and a blade (12) which is arranged at the end part of the knife bar (11) and is vertical to the knife bar (11);

the cutting knife comprises a sleeve (2), wherein the cutting knife (1) movably penetrates through the sleeve (2), and a cutting groove (21) for the sliding cutting of the blade (12) is formed in the sleeve (2) along the length direction.

2. The nerve protection cutter for the single-hole endoscopic surgery according to claim 1, characterized in that the distal end of the cannula (2) extends toward the outside with a holding rod (22) perpendicular to the depth direction of the cutting groove (21);

the tail end of the cutter bar (11) is provided with an operating rod (13) which is vertical to the height direction of the blade (12).

3. The neuroprotective cutting knife according to claim 1, characterized in that it further comprises an abutment rod (3) for passing through the cannula (2) and abutting against the bottom side of the knife bar (11) when the blade (12) is protruded out of the cutting slot (21).

4. The neuroprotective incision knife for single-port endoscopic surgery according to claim 1, characterized in that the section of the cannula (2) is elliptical; the two ends of the sleeve (2) close to the cutting groove (21) are provided with rotating grooves (14) for the blade (12) to rotate around the cutter bar (11) so as to extend out of or be accommodated in relative to the sleeve (2);

the maximum diameter of the cross section is 9mm and the minimum diameter is 4 mm.

5. The neuroprotective cutting knife for single-hole endoscopic surgery according to claim 1, characterized in that the diameter of the knife bar (11) is 2-3mm and the height of the blade (12) is 3-5 mm.

6. The nerve protection cutter for the single-hole endoscopic surgery as claimed in claim 2, characterized in that the distal end of the sleeve (2) is further provided with a fixing component for limiting the cutter bar (11);

the fixing component is a rotary clamping ring (4) which is rotatably assembled on the two sides of the holding rod (22) and used for sleeving the holding rod (22) and the operating rod (13).

7. The nerve protection cutter for the single-hole endoscopic surgery as claimed in claim 1, characterized in that the cutter (1) and the sleeve (2) are made of titanium alloy material.

8. The neuroprotective cutting knife according to claim 1, characterised in that the end of the knife bar (11) remote from the blade (12) is provided with an indicator for indicating the position of the blade (12) relative to the cutting slot (21).