CN219613821U - Arthroscope high-flow mirror sheath - Google Patents
Arthroscope high-flow mirror sheath Download PDFInfo
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- CN219613821U CN219613821U CN202320239358.4U CN202320239358U CN219613821U CN 219613821 U CN219613821 U CN 219613821U CN 202320239358 U CN202320239358 U CN 202320239358U CN 219613821 U CN219613821 U CN 219613821U
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- sheath
- valve
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- obturator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The utility model belongs to the technical field of medical instruments, and discloses an arthroscope high-flow endoscope sheath which comprises a sheath body: the double-valve mirror sheath comprises a sheath tube, and four circular through holes are formed in the end of the sheath tube; the tail end of the sheath tube is provided with a central shaft; the excircle of one end of the central shaft is provided with a threaded interface; a flushing and sucking channel is arranged at the inner side of the threaded interface; the other end of the flushing and sucking channel is provided with a obturator interface device; the tail end of the obturator interface device is provided with a rotatable lock nut; the tail end of the lock nut is externally connected with a obturator which can pass through the double-valve mirror sheath channel; the double-valve mirror sheath also comprises a double-valve long shaft sleeve and a nut which can be externally connected and rotate, the nut is connected with the threaded interface, the double-valve long shaft sleeve is fixed at the outer side of the flushing and sucking channel, and the double-valve long shaft sleeve, the central shaft, the O-shaped sealing ring, the water valve and the sheath tube form a closed flushing and sucking water channel; the nut, the double-valve long shaft sleeve, the obturator and the double-valve mirror sheath are all made of metal except the O-shaped sealing ring; the utility model solves the problems of large resistance and inconvenient operation when the head end of the traditional sheath tube enters the target tissue; the water flow rate of the inlet and outlet of the sheath is low; and the switch handle is weak.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an arthroscope high-flow-rate sheath.
Background
The arthroscope operation is a minimally invasive operation on joint parts of a patient by utilizing an arthroscope and matched surgical instruments and equipment, the arthroscope high-flow scope sheath is one of important instruments, when the operation is performed, a minimally invasive operation channel is firstly established on the parts of the patient to be operated by the scope sheath, the endoscope is used for observing the back through the channel, the operation instrument performs the operation on target tissues by the channel established by another scope sheath, compared with the traditional scope sheath, when the opening section of the end of the sheath head is smooth and is attached to a obturator and enters the target tissues, the resistance is small, and the opening section of the end of the sheath head of the traditional scope sheath has a step corner, so that the resistance is large when the endoscope enters the target tissues, and the operation is inconvenient; secondly, during operation, a solution medium is injected through the water passage of the mirror sheath so as to keep an operation view and a space, waste liquid generated in the operation process and tissues generated after the operation are smoothly discharged through the water outlet valve, so that the smoothness of the mirror sheath has important significance for ensuring the success of the operation, the mirror sheath is further optimized and improved on the basis of the traditional mirror sheath, the flushing and sucking passage of the double-valve mirror sheath is increased by more than ten times than that of the flushing and sucking passage of the traditional mirror sheath, the water passage direction of water inlet and outlet of the mirror sheath is more, and the water passage port of the traditional mirror sheath is too single and narrow, so that the blocking phenomenon of water flow in the mirror sheath is easily caused; in addition, the water inlet valve switch handle and the water outlet valve switch handle are of an integrated structure, are very firm, solve the problem that the water inlet valve switch handle and the water outlet valve switch handle of the traditional mirror sheath are of a two-component structure formed by screwing screw openings, are easy to generate inflexible clamping conditions of the water inlet valve switch handle and the water outlet valve switch handle in the long-time use process, break the handle due to overlarge force, and also have the structure that the water inlet valve and the water outlet valve of the valve body are of luer connectors and are connected with a silicone tube, so that the two connecting modes are better than the traditional connecting mode, and solve the problem that when the connectors are damaged, the tightness is poor and even the connection with water inlet and outlet pipes is impossible.
When the existing endoscopic sheath tube head end (figure 5) and obturator enter target tissues, the opening section of the sheath tube head end is provided with a step corner, so that the endoscopic sheath tube head end is easily blocked by epidermis or ligament tissues, and the resistance is high; the section (figure 7) of the flushing and sucking channel of the existing mirror sheath is of a round hole-shaped structure, the flow velocity of water flowing through the water outlet channel opening is low, and flushing and sucking flow is easy to be small; the existing water inlet valve switch handle and water outlet valve switch handle (figure 9) are of two-component structures, in the process of pulling the switch handle for a long time, the problem that the switch handle is not flexibly clamped easily occurs, and the switch handle is pulled off due to overlarge force is solved, and secondly, the water inlet valve and the water outlet valve (figure 9) of the valve body are of a single luer interface structure, so that the problem that the tightness between an external water pipe and the water inlet valve or the water outlet valve is poor and even the problem that the external water pipe and the water inlet pipe or the water outlet valve cannot be connected easily due to the damage or the damage of the interface is solved.
Disclosure of Invention
In order to solve the problems in the prior art, the arthroscope high-flow mirror sheath provided by the utility model has the advantages that the cross section of the opening at the sheath head end of the arthroscope high-flow mirror sheath is smooth and is attached to a obturator; the flushing and sucking channels with four identical circular through holes and three key slot-shaped through holes (three windows) are uniformly distributed at the end of the sheath tube head in the radial direction, so that the problems of singleness of a water passing channel and unsmooth water inlet and outlet due to less cross section of a water passing channel opening can be timely avoided; the switch handle of the water inlet valve and the switch handle of the water outlet valve with integrated structures can avoid the problem that the switch handle is turned off due to overlarge force, the operation effect is excellent, and secondly, the water inlet valve or the water outlet valve is of a ladder two-section type structure, so that the water inlet valve or the water outlet valve is conveniently connected with the outside, and the operation can be smoothly carried out by one more connecting mode.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an arthroscopic high-flow scope sheath comprising a hollow channel dual valve scope sheath; the double-valve mirror sheath comprises a sheath tube, and four circular through holes are formed in the end of the sheath tube head; the tail end of the sheath tube is provided with a central shaft; the excircle of one end of the central shaft is provided with a threaded interface; a flushing and sucking channel is arranged at the inner side of the threaded interface; the other end of the flushing and sucking channel is provided with a obturator interface device; the tail end of the obturator interface device is provided with a rotatable lock nut; the tail end of the lock nut is externally connected with a obturator which can pass through the double-valve mirror sheath channel; the double-valve mirror sheath also comprises a double-valve long shaft sleeve and a nut, wherein the double-valve long shaft sleeve and the nut can be externally connected and rotate, the nut is connected with the threaded interface, so that the double-valve long shaft sleeve is fixed on the outer side of the flushing and sucking channel, and the double-valve long shaft sleeve, the central shaft, the O-shaped sealing ring, the water valve and the sheath tube form a closed flushing and sucking water channel.
Further, the sheath tube is a cylindrical hollow tube, and four circular through holes (figure 6) which are radially equidistant and communicated with the inner wall are formed in the surface of the hollow tube at the head end of the sheath tube.
Further, the central shaft is composed of a threaded interface, a flushing and sucking channel and a obturator interface device.
Further, the threaded interface is formed by an external sliding thread shape and a hollow inner hole and is arranged between the sheath tube and the flushing and sucking channel.
Further, the flushing and sucking channel (figure 8) is a through hole which is positioned in a groove at the inner side of the threaded joint and is connected with the central hole through three key grooves which are uniformly arranged in the radial direction, O-shaped sealing grooves are arranged at two sides of the flushing and sucking channel groove, and a black O-shaped sealing ring is respectively arranged in the grooves.
Further, the obturator interface device consists of a hollow outer circular cone mounting limit, a hollow outer circular cylinder neck-shaped connecting neck and a hollow outer circular cylinder obturator interface, wherein the diameter of the connecting neck outer circular cylinder neck-shaped is slightly smaller than that of the outer circular cylinder of the obturator interface, and the end of the obturator interface is provided with a positioning block.
Further, the lock nut is sleeved on the hollow cylindrical hole closing device connector, two sides of the tail end of the lock nut are respectively provided with a lock lug structure body, the outer side of the lock nut is provided with a rotatable long handle device, when the long handle is rotated, a spring and a pin ball which are positioned in the lock nut move along the same direction, and the inner side of the lock nut is provided with a round corner rectangular through hole.
Further, the obturator comprises a head tip rod head, a middle tube and a rear handle at the tail part, the rear handle of the obturator comprises two hanging lug structures and a central positioning groove, when the obturator passes through a hollow channel of the whole double-valve lens sheath, the rear handle positioning groove of the obturator is embedded with a terminal positioning block of an interface of the obturator, and a long handle on a lock nut is rotated to lock the obturator in the double-valve lens sheath, and the head tip rod head of the obturator has puncture and guide functions.
Further, the double-valve long shaft sleeve comprises a hollow cylinder, taper sealing through hole water valves with luer connectors are respectively arranged on two sides of the hollow cylinder, and when the double-valve long shaft sleeve is positioned on the outer side of the flushing and sucking channel, the double-valve long shaft sleeve, the central shaft, the O-shaped sealing ring and the sheath tube form a closed flushing and sucking water channel.
Further, the water valve is a taper sealing water inlet valve or a water outlet valve (figure 10) with a luer connector, the cylinder behind the luer connector hanging lug is provided with an outer taper cylinder, the middle part is a sealing valve structure matched with the inner taper and the outer taper, and the handle of the water inlet valve or the handle of the water outlet valve can be rotated in a 90-degree reciprocating manner to open and close the water inlet valve or the water outlet valve.
Further, the nut is an internal thread ring with circular arc grooves uniformly distributed on the outer circle, the nut penetrates through the sheath tube, the nut is rotationally connected with the threaded interface, and the nut has the function of fixing the double-valve long shaft sleeve on the outer side of the flushing and sucking channel.
Further, except for the O-shaped sealing ring, the nut, the double-valve long shaft sleeve, the obturator and the double-valve mirror sheath are all made of metal materials.
Compared with the prior art, the utility model has the beneficial effects that:
(1) Compared with the characteristics of the prior endoscope sheath, the device has the advantages that the open cross section of the sheath head end is smooth and is attached to the obturator, so that the instrument and the endoscope channel of the arthroscopic minimally invasive surgery can be more easily created.
(2) Compared with the characteristics of the prior endoscope sheath, the device has the advantages that the four same circular through holes and the flushing and sucking channels of three key groove-shaped through holes (three windows) are radially and uniformly distributed at the sheath head end, the directions of the channel openings of the water passing channels are more, the problem of water flow blockage in the operation is avoided, and the defect of unsmooth water inlet and outlet in the single operation of the water passing channel of the traditional endoscope sheath is avoided.
(3) Compared with the prior used product, the device can greatly improve the water flow rate of the cross section of the water channel per second, and the cross section area of the water outlet channel of the device is increased by more than ten times than that of the prior art, thereby avoiding the problems that the cross section of the water channel is smaller, and the flushing and suction flow is quite easy to cause serious water inlet and outlet blockage.
(4) Compared with the characteristics of the prior mirror sheath, the device has the advantages that the water inlet valve switch handle and the water outlet valve switch handle are of an integrated structure and are very firm, so that the phenomenon that the operation is smoothly carried out due to the fact that the water inlet valve switch handle and the water outlet valve switch handle are pulled off due to excessive force is avoided.
(5) Compared with the characteristics of the prior mirror sheath, the water inlet valve and the water outlet valve of the valve body of the device are of structures of luer connectors and externally connected with silicone tubes, so that the two connecting modes are better than the traditional connecting mode, and the problem that when the connectors are damaged, the tightness is poor and even the valve cannot be connected with water inlet and outlet tubes is solved.
Drawings
FIG. 1 is an exploded view of the present utility model in example 1;
FIG. 2 is a schematic three-dimensional structure of the present utility model in example 1;
FIG. 3 is a schematic three-dimensional structure of the inner core of example 1;
FIG. 4 is a half cross-sectional view of the present utility model in example 1;
FIG. 5 is a schematic view of a tip of a conventional sheath;
FIG. 6 is a schematic view of the head end of an arthroscopic high flow scope sheath of the present utility model;
FIG. 7 is a schematic diagram of a prior art sheath irrigation channel;
FIG. 8 is a schematic view of an arthroscopic high flow sheath irrigation channel of the present utility model;
FIG. 9 is a schematic view of a prior art sheath fill valve and outlet valve;
FIG. 10 is a schematic illustration of the switch handle of the arthroscope high flow scope sheath inlet valve and the switch handle of the outlet valve of the present utility model;
in the figure: the device comprises a spike head 1, a sheath tube 2, a nut 3, a double-valve long shaft sleeve 4, a obturator interface device 5, a sealing ring 6, a lock nut 7, a tube 8, a rear handle 9, a pin ball 10, a spring 11, a long handle 12, a water inlet valve switch handle 13, a water outlet valve switch handle 14, a threaded interface 15, a flushing and sucking channel 16, a water inlet valve 17 and a water outlet valve 18.
Detailed Description
In order to enable a person skilled in the art to better understand the technical solutions of the present utility model, the present utility model is further explained below with reference to the accompanying drawings.
Example 1
Referring to fig. 1-4, an arthroscope high-flow mirror sheath comprises a double-valve mirror sheath with a hollow channel, the double-valve mirror sheath comprises a sheath tube 2 with a cylindrical hollow tube, four circular through holes which are radially equidistantly communicated with the inner wall are arranged on the surface of the hollow tube at the head end of the sheath tube 2, a central shaft consists of a threaded interface 15, a flushing and sucking channel 16 and a obturator interface device 5, an external round thread shape and a threaded interface 15 with a hollow inner hole are arranged on the outer circle at one end of the central shaft, three key grooves which are radially and uniformly arranged in grooves at the inner side of the threaded interface 15 are connected with the central hole, the inner end of the threaded interface 15 is provided with a flushing and sucking channel 16 with a hollow groove type cylindrical shape, two O-shaped sealing grooves are respectively arranged at two sides of the hollow groove of the flushing and sucking channel 16, each groove is internally provided with a black O-shaped sealing ring 6, three cylinders with key groove-shaped through holes (three windows) which are radially and uniformly distributed at the bottom of the groove in the middle of the flushing and sucking channel 16, the hole closing device interface device 19 is formed by a hollow outer circular cone mounting limit, a hollow outer circular cylinder neck-shaped connecting neck and a hollow outer circular cylinder hole closing device interface, the diameter of the connecting neck outer circular cylinder neck-shaped is slightly smaller than that of the outer circular cylinder of the hole closing device interface, a positioning block is arranged at the tail end of the hole closing device interface device, a rotatable lock nut 7 is arranged at the tail end of the hole closing device interface device 5, the lock nut 7 is sleeved on the hollow circular cylinder hole closing device interface, two sides of the tail end of the lock nut 7 are respectively provided with a locking lug structure, a rotatable long handle 12 device is arranged outside the lock nut 7, when the long handle 12 is rotated, a spring 11 and a pin 10 positioned in the lock nut 7 move along with the same direction, and a round corner rectangular through hole is formed at the inner side of the lock nut 7.
The device also comprises a obturator, wherein the obturator consists of a head tip rod head 1, a middle tube 8 and a rear handle 9 at the tail part, the rear handle of the obturator comprises two hanging lug structures and a central positioning groove, and the head tip rod head 1 of the obturator has puncture and guiding functions.
The double-valve long shaft sleeve 4 is connected with a central shaft and is rotatable, the double-valve long shaft sleeve 4 comprises a hollow cylinder, taper sealing water valves with luer interfaces are respectively arranged on two sides of the hollow cylinder, when the double-valve long shaft sleeve 4 is positioned outside a flushing and sucking channel 16, the double-valve long shaft sleeve 4 and the central shaft, the O-shaped sealing ring 6, the water valve 13 and the sheath tube 2 form a closed flushing and sucking water channel, the water valve is a taper sealing water inlet valve 13 or a water outlet valve 14 with luer interfaces, the cylinder behind the luer interfaces is provided with an outer taper cylinder, the middle part of the cylinder is a sealing valve structure matched with an inner taper, the water inlet valve handle 13 or the water outlet valve handle 14 can be rotated back and forth by 90 degrees to open and close the water inlet valve 17 or the water outlet valve 18, the nut 3 is an inner thread ring with circular arc grooves uniformly distributed on the outer circumference, the double-valve long shaft sleeve 4 and the nut 3 sequentially penetrate through the sheath tube 2, and the nut 3 is in rotary connection with the thread interfaces 14, so that the double-valve long shaft sleeve 4 is fixed outside the flushing and sucking channel 15, and the double-valve long shaft sleeve 4, except the O-shaped sealing ring 6, the nut 3, the closed-valve long shaft sleeve 4, the closed-valve and the double-valve mirror sheath are made of metal materials.
The installation process of the utility model is as follows: when the obturator head end 1 passes through the hollow channel of the whole double-valve mirror sheath along the double-valve mirror sheath tail end lock nut 7, the locating groove of the obturator rear handle 9 is embedded with the obturator interface tail end locating block, and the long handle 12 on the lock nut 7 is rotated to lock the obturator in the double-valve mirror sheath; the two O-shaped sealing rings 6 are respectively positioned in two sealing grooves at the outer side of the sheath tube 2, and secondly, the double-valve long shaft sleeve 4 and the nut 3 sequentially penetrate through the sheath tube 2 of the double-valve mirror sheath, and then the nut 3 and the threaded interface 14 are rotated to fix the double-valve long shaft sleeve 4 at the outer side of the flushing and sucking channel 15, so that the device is assembled.
Claims (12)
1. The arthroscope high-flow mirror sheath comprises a double-valve mirror sheath with a hollow channel, and is characterized by comprising a sheath tube, wherein four circular through holes are formed in the end of the sheath tube; the tail end of the sheath tube is provided with a central shaft; an excircle at one end of the central shaft is provided with a threaded interface; a flushing and sucking channel is arranged on the inner side of the threaded interface; the other end of the flushing and sucking channel is provided with a obturator interface device; the tail end of the obturator interface device is provided with a rotatable lock nut; the tail end of the lock nut is externally connected with a obturator which can pass through the double-valve mirror sheath channel; the double-valve mirror sheath also comprises a double-valve long shaft sleeve and a nut which can be externally connected and rotate, wherein the nut is connected with the threaded interface, so that the double-valve long shaft sleeve is fixed on the outer side of the flushing and sucking channel, and the double-valve long shaft sleeve, the central shaft, the O-shaped sealing ring, the water valve and the sheath tube form a closed flushing and sucking water channel.
2. The arthroscopic high flow scope sheath of claim 1 wherein the sheath is a cylindrical hollow tube and four circular through holes are formed in the surface of the hollow tube at the head end of the sheath and are radially equidistant from the inner wall.
3. The arthroscopic high flow scope sheath of claim 2 wherein said central shaft is comprised of a threaded interface, a irrigation channel and a obturator interface.
4. The arthroscopic high flow scope sheath of claim 3 wherein said threaded interface is comprised of an external smooth wire thread shape and a hollow bore between the sheath tube and the irrigation channel.
5. The arthroscope high-flow mirror sheath according to claim 4, wherein the flushing and sucking channel is a through hole which is positioned in a groove on the inner side of the threaded interface and is connected with the central hole through three key grooves which are uniformly arranged in the radial direction, O-shaped sealing grooves are arranged on two sides of the flushing and sucking channel groove, and a black O-shaped sealing ring is respectively assembled in the grooves.
6. The arthroscopic high flow scope sheath of claim 5 wherein said obturator interface means comprises a hollow cone mounting stop, a hollow cylindrical neck connection neck and a hollow cylindrical obturator interface, a square positioning block being provided inside the obturator interface tip.
7. The arthroscopic high flow scope sheath of claim 6 wherein said lock nut is sleeved over a hollow cylindrical obturator interface and wherein a rotatable long handle means is provided on the outside of said lock nut, said long handle means being rotated in response to movement of said spring and said pin in the same direction as said lock nut, said lock nut being provided with rounded rectangular openings on the inside.
8. The arthroscopic high flow scope sheath of claim 7 wherein said obturator comprises a cephalad tip, a medial tube and a caudal posterior handle comprising two tab structures and a central detent.
9. The arthroscope high-flow scope sheath according to claim 8, wherein the double-valve long shaft sleeve comprises a hollow cylinder, tapered sealing through-hole water valves with luer connectors are respectively arranged on two sides of the hollow cylinder, and when the double-valve long shaft sleeve is positioned outside the flushing and sucking channel, the double-valve long shaft sleeve, the central shaft, the O-shaped sealing ring and the sheath tube form a closed flushing and sucking water channel.
10. The arthroscope high-flow scope sheath according to claim 9, wherein the water valve is a taper sealing water inlet valve or water outlet valve with a luer, the cylinder behind the luer is provided with an outer taper cylinder, the middle part is a sealing valve structure with matched inner taper and outer taper, and the water inlet valve switch handle or the water outlet valve switch handle can be rotated in a 90-degree reciprocating manner to open and close the water inlet valve or the water outlet valve.
11. The arthroscopic high flow scope sheath of claim 10 wherein said nut is an internally threaded ring having evenly distributed circular grooves on an outer circumference thereof, said nut having the effect of securing a double valve long shaft sleeve on the outside of the irrigation channel.
12. The arthroscopic high flow sheath of claim 11 wherein the nut, the dual valve long sleeve, the obturator and the dual valve sheath are all metallic except for the O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320239358.4U CN219613821U (en) | 2023-02-07 | 2023-02-07 | Arthroscope high-flow mirror sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320239358.4U CN219613821U (en) | 2023-02-07 | 2023-02-07 | Arthroscope high-flow mirror sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219613821U true CN219613821U (en) | 2023-09-01 |
Family
ID=87767799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320239358.4U Active CN219613821U (en) | 2023-02-07 | 2023-02-07 | Arthroscope high-flow mirror sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219613821U (en) |
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2023
- 2023-02-07 CN CN202320239358.4U patent/CN219613821U/en active Active
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