CN206729920U - Built-in hydraulic joint dilator - Google Patents
Built-in hydraulic joint dilator Download PDFInfo
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- CN206729920U CN206729920U CN201620948533.7U CN201620948533U CN206729920U CN 206729920 U CN206729920 U CN 206729920U CN 201620948533 U CN201620948533 U CN 201620948533U CN 206729920 U CN206729920 U CN 206729920U
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Abstract
The utility model built-in hydraulic joint dilator, including screw propulsion mechanism, joint spreading mechanism and cylinder body, cylinder body contains preceding cylinder, middle cylinder and rear cylinder, preceding cylinder is threadedly coupled with the drive end bearing bracket of middle cylinder, cylinder is threadedly coupled with the rear end of middle cylinder afterwards, cylinder is threadedly coupled with the rear end of middle cylinder afterwards, check valve A is housed between preceding cylinder and middle cylinder, check valve B is housed between middle cylinder and rear cylinder, screw propulsion mechanism contains screw propulsion rod and is attached thereto piston, cylinder before piston slide fit loads, joint spreading mechanism contains foldable telescopic pipe and telescopic resilience film, the rear end of foldable telescopic Guan Yuhou cylinders is fixedly connected, telescopic resilience film one end is fixedly connected with rear cylinder outer wall, the other end is fixedly connected with foldable telescopic tube top portion.The utility model applicability is wide, and available for multiclass arthrocsopic surgery, it is conveniently controllably to strut joint space, the visual field in increase operation, provides facility for operation technique, improves operative effect, and Bones and joints are not damaged during Bones and joints are strutted.
Description
Technical field
The utility model built-in hydraulic joint dilator is related to medicine equipment, is more particularly to closed for joint Minimally Invasive Surgery
Save distraction instrument.
Background technology
At present arthroscopic techniques in Orthopedic Clinical using more and more common, available for knee joint, ankle-joint, hip joint,
Shoulder joint, elbow joint, even wrist joint, finger tip joint.Articular cavity is that capsular ligament connects the closed lacuna that both ends articular surface is formed,
Surrounding has ligament reinforcement, and capsular ligament and ligament have certain elasticity, can be stretched.Joint space itself is narrow, arthroscope hand
First have to fill joint space in articular cavity perfusion liquid in art.This is often inadequate, at present usually using the increase of following method
Joint space, but have weak point：1）Special traction device, by the traction to joint distal limb, make joint space
It is broadening.But special traction device is expensive, limited strength is drawn, has nerve, blood vessel tension injury, skin the complication possibility such as to weigh wounded.
2）Hand traction, hold distal limb in being performed the operation by assistant and drawn, this method is difficult to continue, labor intensive.3）Hand
Changing position in art, the gap of local joint can be increased, but acted on limited.And clinic temporarily struts without built-in joint space
Apparatus.
Utility model content
The purpose of this utility model is exactly to provide a kind of built-in hydraulic joint in order to overcome above-mentioned weak point and strut
Device, it includes cylinder body and piston, in addition to propulsive mechanism, joint spreading mechanism, the cylinder body contain preceding cylinder, middle cylinder and rear cylinder,
Preceding cylinder and the nose threads of middle cylinder are connected, and rear cylinder is threadedly coupled with the rear end of middle cylinder, and the propulsive mechanism is screw propulsion mechanism,
It contains screw propulsion rod and piston, and screw propulsion rod and piston are connected by screw integral, cylinder before piston slide fit loads,
Piston is moved with screw propulsion rod and moved in preceding cylinder inner chamber, and the joint spreading mechanism contains foldable telescopic pipe and stretched
Elastic membrane, telescopic resilience film is flexible and flexible with foldable telescopic pipe, described built-in, is entered the GATT built in articulations digitorum manus spreading mechanism
Chamber is saved, it is a kind of apparatus for being used in arthrocsopic surgery conveniently can controllably strut joint space, increases the visual field in operation,
Facility is provided for operation technique, improves operative effect, is that a kind of easy to use and reliable joint for joint Minimally Invasive Surgery is supportted
Drive apparatus.
The utility model adopts the following technical scheme that.
Built-in hydraulic joint dilator, including cylinder body and piston, in addition to propulsive mechanism, joint spreading mechanism and cylinder
Body, the cylinder body contain preceding cylinder, middle cylinder and rear cylinder, and preceding cylinder is threadedly coupled with the drive end bearing bracket of middle cylinder, and drive end bearing bracket connects with middle cylinder screw thread,
Cylinder is threadedly coupled with the rear end of middle cylinder afterwards, and rear cylinder is threadedly coupled with the rear end of middle cylinder, and check valve A is housed between preceding cylinder and middle cylinder, in
Check valve B is housed, the propulsive mechanism is screw propulsion mechanism, and it contains screw propulsion rod and piston, spiral between cylinder and rear cylinder
Pushing ram and piston are connected by screw integral, cylinder before piston slide fit loads, and piston is with screw propulsion rod motion and preceding
Cylinder moves in inner chamber, and the joint spreading mechanism contains foldable telescopic pipe and telescopic resilience film, foldable telescopic Guan Yuhou cylinders
Rear end be fixedly connected, the inner chamber of foldable telescopic pipe connects with the inner chamber of rear cylinder, and telescopic resilience film one end is consolidated with rear cylinder outer wall
Fixed connection, the other end are fixedly connected with foldable telescopic tube top portion, and flexible and flexible with foldable telescopic pipe, screw propeller
Equipped with screw C and tapping switch C on preceding casing wall between structure and check valve A, tapping switch C connects with preceding cylinder inner chamber, in being mounted in
Check valve B on cylinder, equipped with screw D and tapping switch D on the middle casing wall of its side, screw E is housed on the middle casing wall of opposite side
E is switched with tapping, tapping switch D, E connect with middle cylinder inner casing.
Pressure gauge is housed on the casing wall of middle cylinder.
The advantages of utility model, is as follows.
1st, a kind of apparatus for being used in arthrocsopic surgery fully strut joint space of the utility model, in increase operation
The visual field, provide facility for operation technique, improve operative effect, be that a kind of reliable operation easy to use is used for joint Minimally Invasive Surgery
Joint distraction instrument.
2nd, the utility model scientific structure design is reasonable, and preceding cylinder is provided with screw propulsion mechanism, and rear cylinder struts machine provided with joint
Structure, it is elliptic stereo structure, inserts in articular cavity, can be manually rotated screw propulsion mechanism and move ahead in cylinder direction backward, before applying pressure to
Cylinder liquid, cylinder liquid cylinder and foldable telescopic pipe after middle cylinder flows to before compressing, continuous rotating screw propulsive mechanism, liquid obtain
Pressure gradually increase, the foldable telescopic pipe of rear cylinder end gradually stretches, so as to play strut joint space effect.
3rd, the utility model applicability is wide, available for multiclass arthrocsopic surgery, such as knee arthroscope, ankle arthroscopy, hip joint
All kinds of arthrocsopic surgeries such as mirror, wrist joint mirror.The position strutted and the distance strutted can be adjusted as needed.
4th, joint spreading mechanism of the present utility model is elliptic stereo structure, is not damaged during Bones and joints are strutted
Bones and joints.
5th, the utility model is easy to operate, easy to use.As long as can be manually rotated screw propulsion mechanism to move ahead in cylinder direction backward,
Bones and joints can be strutted, can accurately control and strut distance.Post operation, open tapping switch E, rear cylinder liquid outflow, spreading mechanism
Telescopic resilience film and foldable telescopic pipe shrink, articular cavity can be exited.
6th, the utility model built-in hydraulic joint dilator small volume, conveniently inserts articular cavity, occupies little space, not shadow
Operation technique is rung, simple in construction, cost is low.
Brief description of the drawings
Fig. 1 is the utility model structural representation front view；
Fig. 2 is state diagram when joint spreading mechanism does not strut；
Fig. 3 is state diagram when joint spreading mechanism struts；
Fig. 4 is screw propulsion mechanism structural representation front view；
Fig. 5 is inserted for joint spreading mechanism and is not strutted Bones and joints view after knee joint cavity；
Fig. 6 is to have strutted Bones and joints view after joint spreading mechanism inserts knee joint cavity.
Embodiment
The utility model is further described with accompanying drawing in conjunction with the embodiments.
Referring to accompanying drawing, built-in hydraulic joint dilator, including cylinder body and piston, in addition to propulsive mechanism, joint strut
Mechanism and cylinder body, the cylinder body contain preceding cylinder 2, middle cylinder 3 and rear cylinder 4, and preceding cylinder is threadedly coupled with the drive end bearing bracket 37 of middle cylinder, drive end bearing bracket
Connect with the screw thread of middle cylinder 3, rear cylinder is threadedly coupled with the rear end of middle cylinder, and rear cylinder is threadedly coupled with the rear end of middle cylinder, between preceding cylinder and middle cylinder
Equipped with check valve A23, check valve B33 is housed between middle cylinder and rear cylinder, the propulsive mechanism is screw propulsion mechanism, and it contains spiral
Pushing ram 11 and piston 13, screw propulsion rod and piston connect integral, cylinder 2 before the slide fit of piston 13 loads by screw 12,
Piston is moved with screw propulsion rod and moved in preceding cylinder inner chamber, and the joint spreading mechanism contains foldable telescopic pipe 42 and stretched
Contracting elastic membrane 41, the rear end of foldable telescopic Guan Yuhou cylinders are fixedly connected, and the inner chamber of foldable telescopic pipe and the inner chamber of rear cylinder connect
Logical, telescopic resilience film one end is fixedly connected with rear cylinder outer wall, and the other end is fixedly connected with foldable telescopic tube top portion, and with folding
Formula telescoping tube is flexible and stretches, and is switched on the preceding casing wall between screw propulsion mechanism and check valve A23 equipped with screw C22 and tapping
C21, tapping switch C connect with preceding cylinder inner chamber, the check valve B33 in middle cylinder, and screw D32 is housed on the middle casing wall of its side
D31 is switched with tapping, screw E35 and tapping switch E36, tapping switch D, E and middle cylinder inner casing are housed on the middle casing wall of opposite side
Connection.Pressure gauge 34 is housed on the casing wall of middle cylinder 3.Handle 111 is connected to the rear end of screw propulsion rod.
Screw C, D, E's act as, and turns on screw C, D, E, respectively forwardly cylinder, middle cylinder, rear cylinder can inject liquid.
Tapping switch C, D, E's act as, and opens tapping switch C, D, E, can bleed off respectively in preceding cylinder, middle cylinder, rear cylinder
Liquid.Tapping switch is prior art.
Fig. 5 is inserted for joint spreading mechanism and is not strutted Bones and joints view after knee joint cavity, and Fig. 6 is that joint struts machine
Bones and joints view has been strutted after setting up knee joint cavity.Shown in figure, between femur 61 and following shin bone 62 above
There is articular cavity 63, joint spreading mechanism 5 is placed into articular cavity 63 through the aperture on knee joint.Label 65 is kneecap, label
64 be ligament.Before joint spreading mechanism struts, articular cavity is narrower, struts posterior joint chamber and becomes big, is advantageous to operate.
The size of joint space described in this document that is, the size of articular cavity.
Sketch use of the present utility model.
Operation consent, preceding cylinder of the present utility model, middle cylinder and rear cylinder are first filled into liquid, during operation, first open one in joint
Aperture, joint spreading mechanism is inserted in joint space, can be manually rotated the handle 111 of screw propulsion rod rear end, backward cylinder direction
Moving ahead, piston 13 moves ahead therewith, cylinder liquid before applying pressure to, cylinder liquid cylinder and foldable telescopic pipe after middle cylinder flows to before compressing,
Continuous rotating screw propulsive mechanism, the pressure that liquid obtains gradually increase, and the foldable telescopic pipe of rear cylinder end gradually stretches, from
And play and strut joint space effect.Post operation, open tapping switch E36, rear cylinder liquid outflow, the telescopic resilience of spreading mechanism
Film and foldable telescopic pipe shrink, and can exit articular cavity.
Sketch application of the utility model in various operations.
1. knee arthroscope：, it is necessary to the meniscus of rupture be cut off or suture, due to joint space when meniscus relief angle ruptures
Narrow, the visual field is small, often operating difficulties.One can be made and add small otch, joint spreading mechanism is inserted, strut joint space, increased
The visual field and operating space.
2. ankle arthroscopy：Ankle-joint gap is small, if do not drawn, arthroscope is difficult insertion joint space.It is additional that one can be made
Small otch, joint spreading mechanism is inserted, struts joint space, can be easily to detect articular cavity comprehensively.
3. hip arthroscopy：Hip joint periarticular capsule and ligament are strong, need during operation to apply very big tractive force ability
Arthroscope gap is retracted, has damage perineum and skin of lower extremity may.Joint spreading mechanism is such as inserted, struts joint space,
It can be performed the operation with easily detecting articular cavity, the reparation of row glenoid lip of articulation of hip, articular cavity cleaning etc. comprehensively.
4. wrist joint mirror：Ankle-joint gap is small, if do not drawn, arthroscope is difficult insertion joint space.It is additional that one can be made
Small otch, joint spreading mechanism is inserted, struts joint space, can be easily to detect articular cavity comprehensively, row deltoid ligament is compound
The operations such as body reparation, aids fracture reset.
Claims (2)
1. a kind of built-in hydraulic joint dilator, including cylinder body and piston, it is characterised in that：Also include propulsive mechanism, joint
Spreading mechanism and cylinder body, the cylinder body contain preceding cylinder（2）, middle cylinder（3）With rear cylinder（4）, the drive end bearing bracket of preceding cylinder and middle cylinder（37）Spiral shell
Line connects, drive end bearing bracket and middle cylinder（3）Screw thread is connect, and rear cylinder is threadedly coupled with the rear end of middle cylinder, and check valve A is housed between preceding cylinder and middle cylinder
（23）, check valve B is housed between middle cylinder and rear cylinder（33）, the propulsive mechanism is screw propulsion mechanism, and it contains screw propulsion rod
（11）And piston（13）, screw propulsion rod and piston pass through screw（12）Connect integral, piston（13）Cylinder before slide fit loads
（2）, piston with screw propulsion rod move and moved in preceding cylinder inner chamber, the joint spreading mechanism contains foldable telescopic pipe
（42）With telescopic resilience film（41）, the rear end of foldable telescopic Guan Yuhou cylinders is fixedly connected, and the inner chamber of foldable telescopic pipe is with after
The inner chamber connection of cylinder, telescopic resilience film one end are fixedly connected with rear cylinder outer wall, and the other end is fixed with foldable telescopic tube top portion to be connected
Connect, and, screw propulsion mechanism and check valve A flexible and flexible with foldable telescopic pipe（23）Between preceding casing wall on screw is housed
C（22）C is switched with tapping（21）, tapping switch C connected with preceding cylinder inner chamber, the check valve B in middle cylinder（33）, its side
Screw D is housed on middle casing wall（32）D is switched with tapping（31）, screw E is housed on the middle casing wall of opposite side（35）E is switched with tapping
（36）, tapping switch D, E connect with middle cylinder inner casing.
2. built-in hydraulic joint according to claim 1 dilator, it is characterised in that：Middle cylinder（3）Casing wall on be equipped with
Pressure gauge（34）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948533.7U CN206729920U (en) | 2016-08-26 | 2016-08-26 | Built-in hydraulic joint dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948533.7U CN206729920U (en) | 2016-08-26 | 2016-08-26 | Built-in hydraulic joint dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206729920U true CN206729920U (en) | 2017-12-12 |
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ID=60554554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620948533.7U Expired - Fee Related CN206729920U (en) | 2016-08-26 | 2016-08-26 | Built-in hydraulic joint dilator |
Country Status (1)
| Country | Link |
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| CN (1) | CN206729920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236161A (en) * | 2016-08-26 | 2016-12-21 | 戴祝 | Built-in hydraulic joint dilator |
-
2016
- 2016-08-26 CN CN201620948533.7U patent/CN206729920U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236161A (en) * | 2016-08-26 | 2016-12-21 | 戴祝 | Built-in hydraulic joint dilator |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20180826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |