CN108938014B - Shoulder arthroscope working channel positioning expander - Google Patents
Shoulder arthroscope working channel positioning expander Download PDFInfo
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- CN108938014B CN108938014B CN201810608953.4A CN201810608953A CN108938014B CN 108938014 B CN108938014 B CN 108938014B CN 201810608953 A CN201810608953 A CN 201810608953A CN 108938014 B CN108938014 B CN 108938014B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
- A61B1/317—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes for bones or joints, e.g. osteoscopes, arthroscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/0034—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope
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Abstract
Shoulder arthroscope working channel positioning expander, including square pipe, the bottom fixed mounting hypoplastron of side pipe inner wall, four bar spouts are seted up to the top surface of hypoplastron, the bar spout links to each other in proper order and constitutes the groined type, the bottom side of bar spout is seted up the bar respectively and is passed through the groove, respectively movable mounting rack in the bar spout, the rack can slide along the bar spout that corresponds respectively, the bar passes through the inslot and is movably mounted the slider respectively, the slider can slide along the bar that corresponds passes through the groove respectively, the top side of slider respectively with the one end fixed connection of rack bottom side, establish the cylinder under the hypoplastron, the lower extreme of cylinder is the back taper, the cylinder is by the front side pull rod, the left side pull rod, back side pull rod and right side pull rod are constituteed, the front side pull rod. The epidural puncture needle has a simple structure, integrates an epidural puncture needle and a straight clamp, can directly expand a channel after epidural puncture is finished, and is convenient and fast to use and operate.
Description
Technical Field
The invention belongs to the field of medical equipment, and particularly relates to a shoulder arthroscope working channel positioning dilator.
Background
The arthroscopic surgery is to insert a lens metal tube with a lighting device into a joint cavity through a small incision, enlarge the internal structure of the joint cavity on a monitor, observe the pathological changes and the parts in the joint cavity, and simultaneously carry out comprehensive examination and clean the pathological changes under the monitoring of a television; the location and the expansion of arthroscope are generally carried out step by step, need to give the expansion channel with the straight pincers of reuse after the epidural puncture needle location, then put into the working sleeve, the complex operation, influence the progress of operation, the doctor uses both hands to tightly hold the straight pincers in the channel expansion, make the straight pincers strut the channel, the doctor is difficult to control the size of exerting oneself, the power undersize is difficult to strut the channel, exert oneself too greatly, make the channel expansion too big easily, lead to the operation too big opening to be difficult to heal, simultaneously, the doctor still needs to hold the straight pincers to maintain the open state of straight pincers with strength after the channel expansion, keep the channel expansion state, waste a large amount of physical expenditures of doctor, increase the operation degree of difficulty, can't satisfy actual demand, I invented a new shoulder arthroscope working channel location expander.
Disclosure of Invention
The invention provides a shoulder arthroscope working channel positioning dilator, which is used for solving the defects in the prior art.
The invention is realized by the following technical scheme:
the shoulder arthroscope working channel positioning expander comprises a square tube, a lower plate is fixedly installed at the bottom of the inner wall of the square tube, four strip-shaped sliding grooves are formed in the top surface of the lower plate and are sequentially connected to form a # -shaped structure, strip-shaped through grooves are formed in the bottom sides of the strip-shaped sliding grooves respectively, racks are movably installed in the strip-shaped sliding grooves respectively and can slide along the corresponding strip-shaped sliding grooves respectively, sliders are movably installed in the strip-shaped through grooves respectively and can slide along the corresponding strip-shaped through grooves respectively, the top sides of the sliders are fixedly connected with one ends of the bottom sides of the racks respectively, a cylinder is arranged right below the lower plate, the lower end of the cylinder is in an inverted cone shape, the cylinder consists of a front pull rod, a left pull rod, a rear pull rod and a right pull rod, the shapes of the front pull rod, the left pull rod, the rear pull rod and the right pull rod are, The bottom side of the right slide block is fixedly connected with the top side of the rear pull rod, and the bottom side of the front slide block is fixedly connected with the top side of the right pull rod through a connecting rod; the middle of the front, back, left and right lower parts of the inner wall of the square tube is respectively connected with one end of the cross shaft through a bearing, the middle part of the periphery of the cross shaft is respectively fixedly provided with a gear, the gear is respectively meshed and matched with a corresponding rack, the other end of the cross shaft is respectively fixedly provided with a first helical gear, the square tube is internally provided with a vertical shaft, the vertical shaft is collinear with the central line of the square tube, the lower end of the vertical shaft is fixedly provided with a second helical gear, the first helical gear is respectively meshed and matched with the second helical gear, the middle part of the periphery of the vertical shaft is provided with a shaft sleeve through a plurality of cross rods, the periphery of the shaft sleeve is fixedly connected with the inner wall of the square tube through a plurality of cross rods, the top of the square tube is fixedly provided with an upper plate, the middle of the top surface of the upper plate, the ratchet is movably matched with the ratchet wheel, a stop lever is arranged on the rear side of the ratchet wheel, and the front side of the stop lever is in contact fit with the rear side of the ratchet wheel.
According to the shoulder arthroscope working channel positioning expander, the cavity is formed in the middle of the top surface of the cylinder, the bottom of the cavity is inverted-cone-shaped, and the bottom of the cavity is communicated with the outside.
According to the shoulder arthroscope working channel positioning expander, the other end of the periphery of the transverse shaft is respectively provided with the shaft seat in a bearing mode, and the top sides of the shaft seats are respectively and fixedly connected with the bottom sides of the corresponding transverse rods through the supporting rods.
The shoulder arthroscopy working channel positioning dilator adopts the medical stainless steel as the cylinder.
The shoulder arthroscope working channel positioning expander is characterized in that the periphery of the stop lever is covered with a rubber layer.
According to the shoulder arthroscope working channel positioning expander, the periphery of the square tube is uniformly provided with a plurality of decorative cracks.
The invention has the advantages that: the epidural puncture needle disclosed by the invention has a simple structure, integrates an epidural puncture needle and a straight forceps, can directly expand a channel after epidural puncture is completed, is convenient to use and operate, is convenient to adjust the expansion degree of the channel, can adjust the expansion size of the channel in a way of rotating a hand wheel, is provided with a self-locking device, can maintain the expanded state of the channel, saves a large amount of physical labor expenditure of doctors, accelerates the operation process, can meet the market demand, and is suitable for popularization. When the puncture positioning needle is used clinically, the cylinder is in a closed state, the adjacent surfaces among the front side pull rod, the left side pull rod, the rear side pull rod and the right side pull rod are in contact fit, the inverted cone at the lower end of the cylinder can be used as the puncture positioning needle, a doctor holds the square tube by hand, the lower end of the cylinder is placed at a skin incision of a lesion part of a patient, and the doctor pushes the top of the square tube by force to ensure that the lower end of the cylinder is subjected to joint puncture; after positioning is completed, the lower portion of the cylinder is located in a shoulder arthroscope working channel, the hand wheel is rotated in a forward direction, the ratchet wheel rotates along with the hand wheel, the ratchet wheel is movably matched with the ratchet, the ratchet wheel drives a second helical gear to rotate through a vertical shaft, the first helical gear is respectively engaged and matched with the second helical gear, the first helical gear respectively starts to rotate anticlockwise, the first helical gear respectively drives a corresponding gear to rotate through a transverse shaft, the gear is respectively engaged and matched with a corresponding rack, the rack respectively slides along a corresponding strip-shaped groove, the rack respectively drives a connecting rod to move along the strip-shaped through groove through a corresponding sliding block, the connecting rod respectively drives a corresponding front side pull rod, a left side pull rod, a rear side pull rod or a right side pull rod to move outwards, adjacent surfaces among the front side pull rod, the left side pull rod, the rear side pull rod and the right side pull rod, The outer sides of the left pull rod, the rear pull rod and the right pull rod are respectively opened to the outer side to expand the channel, the hand wheel is continuously rotated in the forward direction, the channel is continuously expanded until the size of the channel is proper, the hand wheel is stopped to rotate, the rear side of the ratchet is in contact fit with the front side of the stop lever under the action of the torsion spring, the ratchet is clamped by the right end of the ratchet to prevent the ratchet from rotating in the reverse direction, the opened size of the cylinder is fixed, the arthroscope is inserted into the shoulder joint cavity through the opening in the middle of the cylinder, and then the shoulder joint cavity is observed; after observation is finished, the arthroscope is pulled out from the opening in the middle of the cylinder, the hand wheel continues to rotate in the forward direction, the left end of the front side of the ratchet is pressed backwards, the ratchet rotates clockwise along the hinged shaft of the ratchet, the ratchet is separated from the ratchet wheel to the right end of the ratchet, the hand wheel rotates in the reverse direction, the ratchet wheel rotates along with the hand wheel, the ratchet wheel drives the second bevel gear to rotate through the vertical shaft, the first bevel gear is respectively meshed and matched with the second bevel gear, the first bevel gear respectively starts to rotate clockwise, the first bevel gear respectively drives the corresponding gear to rotate through the horizontal shaft, the gear is respectively meshed and matched with the corresponding rack, the racks respectively slide along the corresponding strip-shaped grooves, the racks respectively drive the connecting rods to move along the strip-shaped through grooves through the corresponding sliding blocks, the connecting rods respectively drive the corresponding front side pull rods, left side pull rods, rear side, The adjacent surfaces between the rear side pull rod and the right side pull rod are contacted and matched again, the ratchet is loosened, the square tube is pulled upwards, the lower part of the cylinder is pulled out from the shoulder joint cavity, the shoulder joint cavity is cleaned, a skin incision is sutured, and the shoulder arthroscopic surgery is completed.
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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a cross-sectional view taken along line A-A of FIG. 1; FIG. 3 is an enlarged view of a cross-sectional view taken along line B-B of FIG. 1; FIG. 4 is an enlarged view of the view of FIG. 1 taken along line C; fig. 5 is an enlarged view of part i of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A shoulder arthroscope working channel positioning expander comprises a square tube 1, a lower plate 2 is fixedly installed at the bottom of the inner wall of the square tube 1, four strip-shaped sliding grooves 3 are formed in the top surface of the lower plate 2, the strip-shaped sliding grooves 3 are sequentially connected to form a well shape, strip-shaped through grooves 4 are formed in the bottom sides of the strip-shaped sliding grooves 3 respectively, racks 5 are movably installed in the strip-shaped sliding grooves 3 respectively, the racks 5 can slide along the corresponding strip-shaped sliding grooves 3 respectively, sliders 6 are movably installed in the strip-shaped through grooves 4 respectively, the sliders 6 can slide along the corresponding strip-shaped through grooves 4 respectively, the top sides of the sliders 6 are fixedly connected with one ends of the bottom sides of the racks 5 respectively, a cylinder 20 is arranged right below the lower plate 2, the lower end of the cylinder 20 is in an inverted cone shape, the cylinder 20 is composed of a front side pull rod 201, a left side pull rod 202, a rear side pull rod, the bottom side of the left slider 6 is fixedly connected with the top side of the front pull rod 201, the bottom side of the rear slider 6 is fixedly connected with the top side of the left pull rod 202, the bottom side of the right slider 6 is fixedly connected with the top side of the rear pull rod 203, and the bottom side of the front slider 6 is fixedly connected with the top side of the right pull rod 204 through the connecting rod 21; the middle of the front, back, left and right lower parts of the inner wall of a square tube 1 is respectively connected with one end of a transverse shaft 7 through a bearing, the middle part of the periphery of the transverse shaft 7 is respectively fixedly provided with a gear 8, the gear 8 is respectively engaged and matched with a corresponding rack 5, the other end of the transverse shaft 7 is respectively fixedly provided with a first helical gear 9, the square tube 1 is internally provided with a vertical shaft 10, the vertical shaft 10 is collinear with the central line of the square tube 1, the lower end of the vertical shaft 10 is fixedly provided with a second helical gear 11, the first helical gear 9 is respectively engaged and matched with the second helical gear 11, the middle part of the periphery of the vertical shaft 10 is provided with a shaft sleeve 12 through a bearing, the periphery of the shaft sleeve 12 is fixedly connected with the inner wall of the square tube 1 through a plurality of cross rods 13, the top of the square tube 1 is fixedly provided with an upper plate 14, the middle of, the hand wheel 17 is collinear with the central line of the vertical shaft 10, the left side of the top surface of the upper plate 14 is connected with a ratchet 18 through a torsion spring hinge, the ratchet 18 is movably matched with the ratchet 16, a stop lever 19 is arranged on the rear side of the ratchet 18, and the front side of the stop lever 19 is in contact fit with the rear side of the ratchet 18. The epidural puncture needle disclosed by the invention has a simple structure, integrates an epidural puncture needle and a straight forceps, can directly expand a channel after epidural puncture is completed, is convenient to use and operate, is convenient to adjust the expansion degree of the channel, can adjust the expansion size of the channel in a way of rotating a hand wheel, is provided with a self-locking device, can maintain the expanded state of the channel, saves a large amount of physical labor expenditure of doctors, accelerates the operation process, can meet the market demand, and is suitable for popularization. When the puncture needle is used clinically, the cylinder 20 is in a closed state, the adjacent surfaces among the front pull rod 201, the left pull rod 202, the rear pull rod 203 and the right pull rod 204 are in contact fit, the inverted cone at the lower end of the cylinder 20 can be used as a puncture positioning needle, a doctor holds the square tube 1 to place the lower end of the cylinder 20 at a skin incision of a lesion part of a patient, and the doctor forcibly pushes the top of the square tube 1 to make the lower end of the cylinder 20 perform joint puncture; after positioning is completed, the lower part of the cylinder 20 is positioned in the shoulder arthroscope working channel, the hand wheel 17 is rotated in the forward direction, the ratchet wheel 16 rotates along with the hand wheel 17, the ratchet wheel 16 is movably matched with the ratchet 18, the ratchet wheel 16 drives the second bevel gear 11 to rotate through the vertical shaft 10, the first bevel gear 9 is respectively engaged with the second bevel gear 11, the first bevel gear 9 respectively starts to rotate counterclockwise, the first bevel gear 9 respectively drives the corresponding gear 8 to rotate through the transverse shaft 7, the gear 8 is respectively engaged with the corresponding rack 5, the rack 5 respectively slides along the corresponding strip-shaped groove 3, the rack 5 respectively drives the connecting rod 21 to move along the strip-shaped through groove 4 through the corresponding slide block 6, the connecting rod 21 respectively drives the corresponding front pull rod 201, left pull rod 202, rear pull rod 203 or right pull rod 204 to move outwards, adjacent surfaces between the front pull rod 201, left pull rod 202, rear pull rod 203 and right pull rod 204 are separated, the cylinder 20 can be used as a spreader in an opened state, the outer sides of the front pull rod 201, the left pull rod 202, the rear pull rod 203 and the right pull rod 204 respectively open a channel to the outside to expand the channel, the hand wheel 17 is continuously rotated in a forward direction, the channel is continuously expanded until the size of the channel is proper, the hand wheel 17 is stopped to rotate, the rear side of the ratchet 18 is in contact fit with the front side of the stop lever 19 under the action of a torsion spring, the ratchet 16 is clamped by the right end of the ratchet 18 to prevent the ratchet 16 from rotating in a reverse direction, the opened size of the cylinder 20 is fixed, the arthroscope is inserted into a shoulder joint cavity through an opening in the middle of the cylinder 20, and then the shoulder joint cavity is observed; after the observation is finished, the arthroscope is pulled out from the opening in the middle of the cylinder 20, the hand wheel 17 is continuously rotated in the forward direction, the left end of the front side of the ratchet 18 is pressed backwards, the ratchet 18 rotates clockwise along the hinged shaft of the ratchet 18 until the right end of the ratchet 18 is separated from the ratchet wheel 16, the hand wheel 17 is rotated in the reverse direction, the ratchet wheel 16 rotates along the hand wheel 17, the ratchet wheel 16 drives the second bevel gear 11 to rotate through the vertical shaft 10, the first bevel gear 9 is respectively meshed and matched with the second bevel gear 11, the first bevel gear 9 respectively starts to rotate clockwise, the first bevel gear 9 respectively drives the corresponding gear 8 to rotate through the horizontal shaft 7, the gear 8 is respectively meshed and matched with the corresponding rack 5, the rack 5 respectively slides along the corresponding strip-shaped groove 3, the rack 5 respectively drives the connecting rod 21 to move along the strip-shaped through groove 4 through the corresponding sliding block 6, the connecting rod 21 respectively drives, The rear pull rod 203 or the right pull rod 204 moves inwards until the adjacent surfaces among the front pull rod 201, the left pull rod 202, the rear pull rod 203 and the right pull rod 204 are in contact fit again, the ratchet 18 is loosened, the square tube 1 is pulled upwards, the lower part of the cylinder 20 is pulled out from the shoulder joint cavity, the skin incision is sutured after the shoulder joint cavity is cleaned, and the shoulder arthroscopic surgery is completed.
Specifically, as shown in the figure, a cavity 22 is formed in the middle of the top surface of the cylinder 20 according to the embodiment, the bottom of the cavity 22 is in an inverted cone shape, and the bottom of the cavity 22 is communicated with the outside. The most advanced of cylinder 20 is in the dura mater puncture in-process, and partial hydrops, the gas in the shoulder joint intracavity can be followed cavity 22 and discharged, avoids hydrops or the gas in the shoulder joint intracavity by the most advanced oppression of cylinder 20, makes the inflation of shoulder joint chamber lead to the dura mater to tear.
Specifically, as shown in the figures, the other end of the periphery of the cross shaft 7 in this embodiment is respectively bearing-mounted with a shaft seat 23, and the top sides of the shaft seats 23 are respectively fixedly connected with the bottom sides of the corresponding cross bars 13 through support bars 24. The other end of the cross shaft 7 is fixedly connected with the corresponding cross rod 13 through the shaft seat 23 and the supporting rod 24 respectively, so that the stability of the cross shaft 7 is improved, and the cross shaft 7 is prevented from shaking during rotation.
Further, as shown in the drawings, the cylinder 20 of the present embodiment is made of medical stainless steel. The medical stainless steel is durable, corrosion resistant and stable, facilitates high-temperature sterilization of the device, and prolongs the service life of the cylinder 20.
Further, as shown in the figure, the stopper rod 19 of the present embodiment is covered with a rubber layer on the outer circumference. The rubber layer can slow down the vibration when the rear side of the ratchet 18 contacts with the front side of the stop lever 19, and eliminate the additional injury to the patient caused by the device.
Further, as shown in the figure, the square tube 1 of the present embodiment has a plurality of decorative cracks 25 uniformly formed on the outer periphery thereof. The decorative crack 25 can increase the friction between the palm and the square tube 1, thereby facilitating the user to hold the square tube 1 by hand.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. Shoulder arthroscope working channel positioning expander, including square pipe (1), its characterized in that: the bottom of the inner wall of a square tube (1) is fixedly provided with a lower plate (2), the top surface of the lower plate (2) is provided with four strip-shaped sliding grooves (3), the strip-shaped sliding grooves (3) are sequentially connected to form a well shape, the bottom sides of the strip-shaped sliding grooves (3) are respectively provided with strip-shaped through grooves (4), racks (5) are respectively and movably arranged in the strip-shaped sliding grooves (3), the racks (5) can respectively slide along the corresponding strip-shaped sliding grooves (3), slide blocks (6) are respectively and movably arranged in the strip-shaped through grooves (4), the top sides of the slide blocks (6) are respectively and fixedly connected with one end of the bottom side of the rack (5), a cylinder (20) is arranged under the lower plate (2), the lower end of the cylinder (20) is inverted cone-shaped, and the cylinder (20) is composed of a front side pull rod (201), a left side pull rod (202), a rear side pull rod (203), the shapes of the front pull rod (201), the left pull rod (202), the rear pull rod (203) and the right pull rod (204) are the same, the bottom side of the left slider (6) is fixedly connected with the top side of the front pull rod (201), the bottom side of the rear slider (6) is fixedly connected with the top side of the left pull rod (202), the bottom side of the right slider (6) is fixedly connected with the top side of the rear pull rod (203), and the bottom side of the front slider (6) is fixedly connected with the top side of the right pull rod (204) through connecting rods (21); the middle of the front lower part, the rear lower part, the left lower part and the right lower part of the inner wall of a square pipe (1) are respectively connected with one end of a transverse shaft (7) in a bearing mode, the middle of the periphery of the transverse shaft (7) is respectively fixedly provided with a gear (8), the gear (8) is respectively meshed and matched with a corresponding rack (5), the other end of the transverse shaft (7) is respectively fixedly provided with a first helical gear (9), a vertical shaft (10) is arranged in the square pipe (1), the vertical shaft (10) is collinear with the central line of the square pipe (1), the lower end of the vertical shaft (10) is fixedly provided with a second helical gear (11), the first helical gear (9) is respectively meshed and matched with the second helical gear (11), the middle of the periphery of the vertical shaft (10) is provided with a shaft sleeve (12) in a bearing mode, the periphery of the shaft sleeve (12) is fixedly connected with the inner wall of the square pipe (, the inboard and the upper portion bearing of vertical axis (10) periphery of through-hole (15) are connected, upper end fixed mounting ratchet (16) of vertical axis (10), top side fixed mounting hand wheel (17) of ratchet (16), hand wheel (17) and vertical axis (10) central line collineation, torsion spring hinged joint ratchet (18) are passed through to the left side of upper plate (14) top surface, ratchet (18) and ratchet (16) clearance fit, the rear side of ratchet (18) is equipped with shelves pole (19), the front side of shelves pole (19) contacts the cooperation with the rear side of ratchet (18).
2. The shoulder arthroscopic working channel positioning dilator of claim 1 and wherein: the middle of the top surface of the cylinder (20) is provided with a cavity (22), the bottom of the cavity (22) is inverted cone-shaped, and the bottom of the cavity (22) is communicated with the outside.
3. The shoulder arthroscopic working channel positioning dilator of claim 1 and wherein: the other end of the periphery of the transverse shaft (7) is respectively provided with a shaft seat (23) in a bearing mode, and the top sides of the shaft seats (23) are respectively fixedly connected with the bottom sides of the corresponding transverse rods (13) through supporting rods (24).
4. The shoulder arthroscopic working channel positioning dilator of claim 1 and wherein: the cylinder (20) is made of medical stainless steel.
5. The shoulder arthroscopic working channel positioning dilator of claim 1 and wherein: the periphery of the stop lever (19) is covered with a rubber layer.
6. The shoulder arthroscopic working channel positioning dilator of claim 1 and wherein: the periphery of the square pipe (1) is uniformly provided with a plurality of decorative cracks (25).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810608953.4A CN108938014B (en) | 2018-06-13 | 2018-06-13 | Shoulder arthroscope working channel positioning expander |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810608953.4A CN108938014B (en) | 2018-06-13 | 2018-06-13 | Shoulder arthroscope working channel positioning expander |
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| CN108938014A CN108938014A (en) | 2018-12-07 |
| CN108938014B true CN108938014B (en) | 2020-10-30 |
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| CN113080943B (en) * | 2021-03-30 | 2022-09-13 | 中国人民解放军陆军特色医学中心 | Shoulder joint mobility measuring device |
| CN114010277A (en) * | 2021-10-25 | 2022-02-08 | 河北医科大学第三医院 | Adjustable channel of nucleus pulposus enucleation under unilateral binary channels mirror |
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| JP2012050538A (en) * | 2010-08-31 | 2012-03-15 | Terumo Corp | Ablation device |
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| US20120053611A1 (en) * | 2002-09-30 | 2012-03-01 | Saab Mark A | Apparatus and methods for bone, tissue and duct dilatation |
| CN201356638Y (en) * | 2009-03-11 | 2009-12-09 | 吴乃庆 | Centrum eurynter |
| CN203001082U (en) * | 2013-01-21 | 2013-06-19 | 杨学宁 | Expandable forming puncture outfit for disposable endoscope |
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Effective date of registration: 20210420 Address after: No.83, Wenhua Road, Shenhe District, Shenyang City, Liaoning Province, 110011 Patentee after: GENERAL HOSPITAL OF SHENYANG MILITARY REGION Address before: 110016 Department of Orthopaedics, General Hospital of Shenyang Military Region, Shenyang District, Shenyang City, Liaoning Province Patentee before: Liu Xinwei |