CN117100333A

CN117100333A - Retractor for neurosurgery

Info

Publication number: CN117100333A
Application number: CN202310412249.2A
Authority: CN
Inventors: 苏明明; 郑朝辉
Original assignee: Air Force Medical University of PLA
Current assignee: Air Force Medical University of PLA
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-11-24

Abstract

The invention discloses a retractor for neurosurgery, and belongs to the technical field of medical equipment. Including positioning unit and auxiliary element, the user is with the nerve position of body of rod laminating to patient wound downwards, pick up the nerve through the interval department of traction ring and body of rod, carry the nerve, the nerve is in order to avoid fracture and damage at the in-process of adjustment, two sets of traction rings carry out the centre gripping to the nerve, the whole downward sloping of body of rod inserts the neural below, make the nerve encircle the outer wall of body of rod and pick up, nerve after the pick up can use expansion section of thick bamboo and patient wound as the fulcrum and rotate, can avoid the outward external power of staff to stimulate patient's nerve, the nerve can be with inertia pulling nerve at the in-process of outer spin pulling, can not cause the influence to the nerve body.

Description

Retractor for neurosurgery

Technical Field

The invention relates to the technical field of medical equipment, in particular to a retractor for neurosurgery.

Background

When performing neurosurgery skull or vertebra operation, skin and muscle tissues are often required to be retracted, and at the moment, the operation needs to be assisted by using a retractor, the retractor can be used for retracting the tissues, an operation field is exposed, so that exploration and operation are convenient, and the retractor is an indispensable operation tool.

Patent number CN202110191012.7 discloses a retractor for neurosurgery, including parallel arrangement's first horizontal arc and second horizontal arc, sliding connection is in first vertical retractor plate and the second vertical retractor plate on first horizontal arc and the second horizontal arc are used for locking a plurality of locating parts that first vertical retractor plate and second vertical retractor plate adopted with first horizontal arc and second horizontal arc, can dismantle on the first vertical retractor plate and be connected with first tractive hook, can dismantle on the second vertical retractor plate and be connected with the second tractive hook, first tractive hook and second tractive hook symmetry set up, follow the slip direction of first vertical retractor plate and second vertical retractor plate all is provided with the scale on first horizontal arc and the second horizontal arc.

The patent solves the problems that the conventional retractor can not accurately control the tissue retraction, a doctor needs to cut an opening of a patient and conduct larger retraction in order to obtain a good operation field, so that the wound of the patient after operation heals slowly and pain is brought to the patient; however, in the process of switching the nerve, the nerve cannot be pulled by inertia, and the nerve body is affected.

Disclosure of Invention

Technical problem to be solved

The present invention is directed to a retractor for neurosurgery, which solves the above-mentioned problems.

Technical proposal

The utility model provides a retractor for neurosurgery, includes positioning unit and auxiliary unit, auxiliary unit is installed to positioning unit's side terminal surface, positioning unit includes first handle and sets up in the second handle of first handle one side, the centre gripping is provided with the expansion section of thick bamboo between first handle and the second handle, the inner chamber of expansion section of thick bamboo alternates and is provided with external mechanism, cup joint and be provided with the traction lever between first handle and the second handle.

Preferably, the first handle comprises a first rod body and a connecting buckle arranged on the outer end face of the first rod body, and a first sleeve joint ring buckle is arranged on the inner end face of the first rod body.

Preferably, the second handle comprises a second rod body and a through hole arranged on the side end face of the second rod body, a second sleeve joint ring is arranged at the edge of the inner end face of the second rod body, a user holds the two ends of the first rod body and the second rod body by hands, the head of the expansion cylinder penetrates through the position where the patient needs to be treated, the head of the expansion cylinder is propped against the patient injury, and the worker can rotate by taking the first sleeve joint ring and the second sleeve joint ring as fulcrums outwards, so that the distance between the first rod body and the second rod body is adjusted.

Preferably, the external mechanism comprises two groups of combined cylinders and a communicating cylinder arranged in the inner cavities of the two groups of combined cylinders, the inner cavities of the expanding cylinder are sleeved with the combined cylinders, the tip end positions of the communicating cylinders are connected with an external pipeline, impurities are pumped outwards from the inner cavities of the external pipeline to the inner cavities of the communicating cylinders, scabs and dust impurities in blood are adsorbed to the inner cavities of the external pipeline, and the scabs at the wound are cleaned, so that wound inflammation is avoided.

Preferably, the traction rod comprises a rod body and a traction ring arranged at the bottom of the outer surface of the rod body, the side end surface of the rod body is provided with a groove, the bottom of the groove is penetrated and provided with a hollow groove, a user can downwards attach the rod body to the nerve position of a wound of a patient, pick up the nerve through the interval between the traction ring and the rod body, carry the nerve, in order to avoid fracture and damage in the process of adjustment, two groups of traction rings clamp the nerve, the rod body is wholly obliquely inserted below the nerve, the nerve is enabled to pick up around the outer wall of the rod body, the lifted nerve can rotate by taking the expansion cylinder and the wound of the patient as fulcra, the nerve of the patient can be prevented from being pulled by external force by the worker, the nerve can be pulled by inertia, the nerve body cannot be influenced by the inertia, cooling water is poured into the inner cavity of the hollow groove, the position of the rod body, which is contacted with the traction ring is enabled to be cooled, and the surface of the traction rod body cannot be worn and damaged due to the surface of the traction rod body when the traction rod is contacted with the nerve body.

Preferably, the rod body is inserted into the inner cavities of the first sleeve joint ring buckle and the second sleeve joint ring buckle from bottom to top, so that the traction rod, the second handle and the expansion cylinder are integrated.

Preferably, the auxiliary unit comprises an elastic rope and an inserting ring arranged between two groups of elastic ropes, connecting belts are arranged on two sides of the side end faces of the inserting ring, four groups of connecting belts are provided with serial blocks, the connecting belts are movably connected with the outer end wall of the expansion cylinder through the connecting rings, when the nerve body is transferred to a required position, a worker is stably and integrally arranged on the body of a patient, the microscope cylinder penetrates through an inner cavity of the inserting ring from top to bottom, an ocular lens is downwards and vertically arranged above a connecting nerve of the patient, the worker can observe the nerve body conveniently, the worker can pull the elastic rope outwards, and the position of the microscope cylinder can be adjusted in the process of pulling the elastic rope through the connecting belts and the serial blocks, so that the integral practicability and functional diversity of the device are improved.

Preferably, the elastic rope is sleeved into the inner cavities of the first sleeved ring buckle and the second sleeved ring buckle, so that the positioning unit and the auxiliary unit are integrated.

Preferably, the positioning unit further comprises a positioning screw, the positioning screw is inserted into the inner cavity of the through hole from outside to inside, the other end of the positioning screw is inserted into the inner end wall of the first rod body, the relative position of the first handle and the second handle is adjusted by using the movement of a person, the distance between the two groups of expansion cylinders is adjusted by adjusting the screw threads between the positioning screw and the through hole, the wound of a patient is expanded outwards through the expansion cylinders, the oxygen receiving area of the wound of the patient is increased, and the rehabilitation time of the patient is shortened.

Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. the user holds the both ends of the first body of rod and the second body of rod with both hands, runs through the head of expansion section of thick bamboo and inserts the position that the patient needs to handle, makes the head of expansion section of thick bamboo withstand patient wound department, and the staff can outwards use first socket joint latch ring and second socket joint latch ring to rotate as the fulcrum, makes the interval of the first body of rod and second body of rod adjust.

2. The tip end of the communicating tube is connected with the external pipeline, impurities are pumped outwards from the internal cavity of the communicating tube, so that scab and dust impurities in blood are adsorbed to the internal cavity of the external pipeline, and the scab at the wound is cleaned, so that wound inflammation is avoided.

3. The relative position of the first grip and the second grip is adjusted by the movement of a user, the distance between the two groups of expansion cylinders is adjusted by adjusting the threads between the positioning screw and the through holes, the wound of the patient is expanded outwards through the expansion cylinders, the oxygen receiving area of the wound of the patient is increased, and the rehabilitation time of the patient is shortened.

4. The nerve position of patient wound department is laminate downwards to the user with the body of rod, pick up the nerve through the interval department of traction ring and body of rod, carry the nerve, the nerve is in order to avoid fracture and damage at the in-process of adjustment, two sets of traction rings carry out the centre gripping to the nerve, the whole downward sloping of body of rod inserts the below of nerve, make the nerve encircle the outer wall of body of rod and pick up, nerve after picking up can use expansion section of thick bamboo and patient wound department as the fulcrum and rotate, can avoid the outward external power pulling patient's of staff nerve, the nerve can be with inertial pulling nerve in the in-process of outer spiral pulling, can not cause the influence to the nerve body.

5. Cooling water is poured into the inner cavity of the hollow groove, so that the contact position of the rod body and the traction ring is cooled, and the cooled traction rod cannot abrade and damage the outer surface of the nerve body due to the surface material of the traction rod when contacting the nerve body.

6. When the nerve body is transferred to a required position, the staff stabilizes the whole device on the body of the patient, and the microscope tube is inserted into the inner cavity of the insertion ring from top to bottom, so that the insertion ocular is vertically placed right above the connecting nerve of the patient, and the nerve body is conveniently observed by the staff.

7. The user can outwards stimulate the elastic rope, because of all carrying out swing joint through linking area and series connection piece between two sets of interlude rings, the in-process of pulling elastic rope, the position of microscopic lens cone can be received the adjustment, has improved the whole practicality and the functional diversity of device.

Drawings

FIG. 1 is a schematic view of the overall structure of a retractor for neurosurgery according to the present invention;

FIG. 2 is a schematic view of a positioning unit of a retractor for neurosurgery according to the present invention;

FIG. 3 is a schematic view of the first handle and the second handle of the retractor for neurosurgery according to the present invention;

FIG. 4 is a schematic view of the construction of an auxiliary unit of a retractor for neurosurgery of the present invention;

FIG. 5 is a schematic view of an external mechanism of a retractor for neurosurgery according to the present invention;

fig. 6 is a schematic view of a retractor drawbar configuration for neurosurgery according to the present invention.

The reference numerals in the figures illustrate: 1. a positioning unit; 11. a first grip; 111. a first rod body; 112. a connecting buckle; 113. the first sleeve joint ring buckle; 12. a second grip; 121. a second rod body; 122. a through hole; 123. a second sleeve joint ring buckle; 13. an expansion cylinder; 14. an external connection mechanism; 141. a combination cylinder; 142. a communicating tube; 15. a traction rod; 151. a rod body; 152. a groove; 153. a hollow groove; 154. a traction ring; 16. positioning a screw; 2. an auxiliary unit; 21. an elastic rope; 22. a penetration ring; 23. a connecting belt; 24. a series block; 25. and a connecting ring.

Detailed Description

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 invention 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 invention.

In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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 invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-6, the present invention provides a technical solution:

example 1

The retractor for neurosurgery comprises a positioning unit 1 and an auxiliary unit 2, wherein the auxiliary unit 2 is arranged on the side end surface of the positioning unit 1, the positioning unit 1 comprises a first handle 11 and a second handle 12 arranged on one side of the first handle 11, an expansion cylinder 13 is clamped between the first handle 11 and the second handle 12, an external connection mechanism 14 is inserted into an inner cavity of the expansion cylinder 13, and a traction rod 15 is sleeved between the first handle 11 and the second handle 12;

the first handle 11 comprises a first rod body 111 and a connecting buckle 112 arranged on the outer end surface of the first rod body 111, and a first sleeve joint ring buckle 113 is arranged on the inner end surface of the first rod body 111;

the second handle 12 comprises a second rod body 121 and a through hole 122 arranged on the side end surface of the second rod body 121, a second sleeve joint ring 123 is arranged at the edge of the inner end surface of the second rod body 121, a user holds the two ends of the first rod body 111 and the second rod body 121 by hands, the head of the expansion cylinder 13 is inserted into the position to be treated of the patient in a penetrating way, the head of the expansion cylinder 13 is propped against the wounded part of the patient, and a worker can rotate outwards by taking the first sleeve joint ring 113 and the second sleeve joint ring 123 as fulcrums, so that the distance between the first rod body 111 and the second rod body 121 is adjusted;

the external connection mechanism 14 comprises two groups of combined barrels 141 and a communicating barrel 142 arranged in the inner cavities of the two groups of combined barrels 141, the inner cavities of the expansion barrels 13 are sleeved with the combined barrels 141, the tip end positions of the communicating barrels 142 are connected with an external connection pipeline, impurities are pumped outwards from the inner cavities of the external connection pipeline to the inner cavities of the communicating barrels 142, scabs and dust impurities in blood are adsorbed to the inner cavities of the external connection pipeline, and the scabs at the wound are cleaned, so that wound inflammation is avoided.

Example 2

The traction rod 15 comprises a rod body 151 and a traction ring 154 arranged at the bottom of the outer surface of the rod body 151, a groove 152 is formed in the side end face of the rod body 151, a hollow groove 153 is formed in the bottom of the groove 152 in a penetrating mode, a user can downwards attach the rod body 151 to the nerve position of a wound of a patient, pick up the nerve through the interval between the traction ring 154 and the rod body 151, carry the nerve, in order to avoid breakage and damage in the process of adjustment, two groups of traction rings 154 clamp the nerve, the rod body 151 is wholly obliquely inserted below the nerve downwards, the nerve is enabled to surround the outer wall of the rod body 151 to pick up, the lifted nerve can rotate by taking the expansion cylinder 13 and the wound of the patient as fulcra, the nerve of the patient can be prevented from being pulled by the staff outwards with force, the nerve can be pulled by inertia in the process of outwards rotating, the nerve can not affect the nerve body, cooling water is poured into the inner cavity of the hollow groove 153, the position of the rod body 151 in contact with the traction ring 154 is enabled to be cooled, and the traction rod 15 after cooling cannot damage the outer surface of the nerve body due to the surface material of the nerve body.

Example 3

The rod body 151 penetrates and inserts the inner cavity of the first sleeve joint ring buckle 113 and the second sleeve joint ring buckle 123 from bottom to top, the traction rod 15, the second grip 12 and the expansion cylinder 13 are made into a whole, the auxiliary unit 2 comprises elastic ropes 21 and penetrating rings 22 arranged between the two groups of elastic ropes 21, connecting belts 23 are arranged on two sides of the side end faces of the penetrating rings 22, a series block 24 is arranged between the four groups of connecting belts 23, the connecting belts 23 are movably connected with the outer end wall of the expansion cylinder 13 through the connecting rings 25, when the nerve body is transferred to a required position, a worker stabilizes the whole device on the body of the patient, penetrates and inserts the microscopic tube from top to bottom into the inner cavity of the penetrating rings 22, enables the ocular lens to be placed vertically above the connecting nerve of the patient downwards, facilitates the observation of the nerve body by the worker, the worker can pull the elastic ropes 21 outwards, and the positions of the microscopic tube can be adjusted in the process of pulling the elastic ropes 21 due to the movable connection between the two groups of the penetrating rings 22.

Example 4

The elastic rope 21 is sleeved into the inner cavities of the first sleeved ring buckle 113 and the second sleeved ring buckle 123, so that the positioning unit 1 and the auxiliary unit 2 are integrated, the positioning unit 1 further comprises a positioning screw 16, the positioning screw 16 is inserted into the inner cavity of the through hole 122 from outside to inside, the other end of the positioning screw 16 is inserted into the inner end wall of the first rod body 111, the relative positions of the first handle 11 and the second handle 12 are adjusted by using the movement of a person, the distance between the two groups of expansion barrels 13 is adjusted by adjusting the screw threads between the positioning screw 16 and the through hole 122, the wound of a patient is outwards expanded by the expansion barrels 13, the oxygen receiving area of the wound of the patient is increased, and the rehabilitation time of the patient is shortened.

To sum up: the retractor for neurosurgery comprises a positioning unit 1 and an auxiliary unit 2, wherein the auxiliary unit 2 is arranged on the side end face of the positioning unit 1, the positioning unit 1 comprises a first grip 11 and a second grip 12 arranged on one side of the first grip 11, an expansion cylinder 13 is clamped between the first grip 11 and the second grip 12, an external connection mechanism 14 is inserted into an inner cavity of the expansion cylinder 13, a traction rod 15 is sleeved between the first grip 11 and the second grip 12, a user holds two ends of a first rod body 111 and a second rod body 121 by hands, the head of the expansion cylinder 13 penetrates through a position where a patient needs to be treated, the head of the expansion cylinder 13 is enabled to prop against the injured position of the patient, a worker can rotate outwards by taking a first sleeve ring 113 and a second sleeve ring 123 as fulcra, the distance between the first rod body 111 and the second rod body 121 is adjusted, the tip position of the communication cylinder 142 is connected with an external connection pipeline, impurities are sucked outwards from the inner cavity of the communication cylinder 142, scabs and the impurities in blood are adsorbed to the inner cavity of the external connection pipeline, and the scabs are prevented from being inflamed;

the relative positions of the first grip 11 and the second grip 12 are adjusted by the movement of a user, the distance between the two groups of expansion cylinders 13 is adjusted by the screw thread adjustment between the positioning screw 16 and the through hole 122, the wound of the patient is outwards expanded by the expansion cylinders 13, the oxygen receiving area of the wound of the patient is increased, and the rehabilitation time of the patient is reduced;

the user laminates the body of rod 151 downwards to the nerve position of patient wound department, lift the nerve through traction ring 154 and the interval department of body of rod 151, carry the nerve, in order to avoid fracture and damage in the in-process of adjustment of nerve, two sets of traction rings 154 carry on the nerve, the whole downward sloping of body of rod 151 inserts the below of nerve, make the nerve encircle the outer wall of body of rod 151 and lift up, the nerve after lifting up can regard expansion cylinder 13 and patient wound department as the fulcrum to rotate, can avoid the staff to outwards exert force and draw patient's nerve, the nerve can be with inertia pulling nerve in the process of outward whirling pulling, can not cause the influence to the nerve body;

cooling water is poured into the inner cavity of the hollow groove 153, so that the contact position of the rod body 151 and the traction ring 154 is cooled, and the cooled traction rod 15 cannot abrade and damage the outer surface of the nerve body due to the surface material when contacting the nerve body;

when the nerve body is transferred to a required position, a worker stably installs the whole device on the body of a patient, and inserts the microscope tube into the inner cavity of the insertion ring 22 from top to bottom, so that the insertion ocular is vertically placed right above the connecting nerve of the patient, and the worker can observe the nerve body conveniently;

the user can outwards stimulate the elastic rope 21, because the flexible connection is carried out through linking area 23 and series block 24 between two sets of interlude rings 22, the in-process of pulling elastic rope 21, the position of the microscopic lens cone can be received the adjustment, has improved the whole practicality and the functional diversity of device.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a retractor for neurosurgery, includes positioning unit (1) and auxiliary unit (2), auxiliary unit (2) are installed to the side terminal surface of positioning unit (1), its characterized in that: the positioning unit (1) comprises a first handle (11) and a second handle (12) arranged on one side of the first handle (11), an expansion cylinder (13) is clamped between the first handle (11) and the second handle (12), an external mechanism (14) is arranged in an inner cavity of the expansion cylinder (13) in an inserted mode, and a traction rod (15) is sleeved between the first handle (11) and the second handle (12).

2. A retractor for neurosurgery according to claim 1, wherein: the first handle (11) comprises a first rod body (111) and a connecting buckle (112) arranged on the outer end face of the first rod body (111), and a first sleeve joint ring buckle (113) is arranged on the inner end face of the first rod body (111).

3. A retractor for neurosurgery according to claim 1, wherein: the second handle (12) comprises a second rod body (121) and a through hole (122) arranged on the side end face of the second rod body (121), and a second sleeve joint ring buckle (123) is arranged at the edge of the inner end face of the second rod body (121).

4. A retractor for neurosurgery according to claim 1, wherein: the external connection mechanism (14) comprises two groups of combined barrels (141) and a communicating barrel (142) arranged in the inner cavities of the two groups of combined barrels (141), and the inner cavities of the expansion barrels (13) are sleeved with the combined barrels (141).

5. A retractor for neurosurgery according to claim 1, wherein: the traction rod (15) comprises a rod body (151) and a traction ring (154) arranged at the bottom of the outer surface of the rod body (151), a groove (152) is formed in the side end face of the rod body (151), and a hollow groove (153) is formed in the bottom of the groove (152) in a penetrating mode.

6. A retractor for neurosurgery according to claim 5, wherein: the rod body (151) is inserted into the inner cavities of the first sleeve joint ring buckle (113) and the second sleeve joint ring buckle (123) from bottom to top, so that the traction rod (15), the second grip (12) and the expansion cylinder (13) are integrated.

7. A retractor for neurosurgery according to claim 1, wherein: the auxiliary unit (2) comprises elastic ropes (21) and penetrating rings (22) arranged between the two groups of elastic ropes (21), connecting belts (23) are arranged on two sides of the side end faces of the penetrating rings (22), serial blocks (24) are arranged between the four groups of connecting belts (23), and the connecting belts (23) are movably connected with the outer end wall of the expansion cylinder (13) through connecting rings (25).

8. A retractor for neurosurgery according to claim 7, wherein: the elastic rope (21) is sleeved into the inner cavities of the first sleeved ring buckle (113) and the second sleeved ring buckle (123), so that the positioning unit (1) and the auxiliary unit (2) are integrated.

9. A retractor for neurosurgery according to claim 1, wherein: the positioning unit (1) further comprises a positioning screw rod (16), the positioning screw rod (16) is inserted into the inner cavity of the through hole (122) from outside to inside, and the other end of the positioning screw rod (16) is inserted into the inner end wall of the first rod body (111).