CN216855487U - Wide-visual-field subcutaneous dilator - Google Patents
Wide-visual-field subcutaneous dilator Download PDFInfo
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- CN216855487U CN216855487U CN202120338749.2U CN202120338749U CN216855487U CN 216855487 U CN216855487 U CN 216855487U CN 202120338749 U CN202120338749 U CN 202120338749U CN 216855487 U CN216855487 U CN 216855487U
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Abstract
The utility model relates to a wide-visual-field subcutaneous dilator, which comprises a bottom plate, an inner pipe, an outer pipe, a sliding chute, a first fixing piece, a second fixing piece, an expansion pipe, a first connecting plate and a second connecting plate, wherein the inner pipe and the outer pipe are fixedly arranged on the bottom plate; the top surface of the bottom plate is provided with a slot for clamping the expansion pipe, and two sides of the bottom of the expansion pipe are respectively connected with the first connecting plate and the second connecting plate in a slope-type tangent structure.
Description
Technical Field
The utility model relates to a wide-view subcutaneous dilator, which is applied to the field of medical surgery.
Background
As is known, when performing minimally invasive surgery such as treatment of a paraspinal spine or a posterior thoraco-posterior paraspinal minimally invasive channel system, soft tissue at an incision needs to be expanded after the incision is made in a human body so as to facilitate surgical devices such as an endoscope to extend into an affected part from the incision, most of the prior minimally invasive surgery adopts a mode of expanding tissues step by using a multi-stage expansion sleeve, but the incision is expanded step by step to result in longer reaming time, so that the time of the minimally invasive surgery is prolonged; and current expansion sleeve pipe adopts round tube type structure usually, but for the patient carry out the operation usually only need cut rectangular shape the opening can, the incision of rectangular shape is convenient for the postoperative to sew up more in addition, the incision of the longer bar of circular shape expansion sleeve pipe diameter is wideer, leads to the actual area in patient's operation incision to be greater than the required area of operation, is unfavorable for the minimizing of patient's health damage to be handled and the recovery in later stage.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the wide-view subcutaneous dilator which can adjust the dilation of the surgical incision according to actual needs, does not need to add a sleeve at the first stage, saves the reaming time and reduces the injury of minimally invasive surgery patients.
The technical scheme of the utility model is as follows:
a wide-view subcutaneous dilator comprises a bottom plate, an inner tube and an outer tube which are fixedly arranged on the bottom plate, a sliding chute arranged between the outer tube and the inner tube, a first fixing piece and a second fixing piece which are integrally connected with the outer tube, a dilating tube which is arranged in the sliding chute and slides up and down, a first connecting plate and a second connecting plate which are respectively arranged at two sides of the bottom of the dilating tube, wherein a first expanding piece and a second expanding piece are respectively fixed on the first connecting plate and the second connecting plate; the top surface of the bottom plate is provided with a slot for clamping the expansion pipe, and two sides of the bottom of the expansion pipe are respectively connected with the first connecting plate and the second connecting plate in a slope-type tangent structure.
The bottom plate is an elliptic plate-shaped structure, a first limiting groove and a second limiting groove which are used for placing a first connecting plate and a second connecting plate are respectively arranged on two sides of the bottom plate, the first limiting groove and the second limiting groove are both arc-shaped structures, and the first limiting groove and the second limiting groove are symmetrically arranged on two sides of the bottom plate.
The top surface of the bottom plate is provided with a slot which is of a ring-shaped structure, the slot is disconnected at the first limiting groove and the second limiting groove, and the width of the slot is matched with the thickness of the expansion pipe.
The inner side and the outer side of the top surface of the slot are respectively provided with an inner pipe and an outer pipe, the inner pipe is flush with the inner side edge of the slot, the outer pipe is flush with the outer side edge of the slot, and the bottom surfaces of the inner pipe and the outer pipe are connected with the top surface of the bottom plate in a non-detachable mode.
The inner tube and the outer tube are both elliptical tubular structures, the heights of the inner tube and the outer tube are equal, and the width of the sliding groove arranged between the inner tube and the outer tube is larger than or equal to the thickness of the expansion tube.
The outer tube is characterized in that a first fixing piece and a second fixing piece are detachably arranged on one side of the top surface of the outer tube, the first fixing piece and the second fixing piece are both arc-shaped structures, and a fixing groove used for clamping the first fixing piece and the second fixing piece is formed at the joint of the first fixing piece and the second fixing piece.
The expansion pipe is oval tubular structure, and the height that highly is greater than inner tube and outer tube of expansion pipe, and the top of expansion pipe is equipped with oval-shaped snap ring, and the snap ring extends to the outside from the top of expansion pipe, but the snap ring is connected with the expansion pipe undetachably.
The two sides of the bottom surface of the expansion pipe are of slope structures, the slope surfaces gradually become lower from the outer wall to the inner wall of the expansion pipe, and the slope surfaces of the two sides of the bottom surface of the expansion pipe are respectively matched with the slope surfaces of the first connecting plate and the second connecting plate.
The first connecting plate and the second connecting plate are both arc-shaped plate-shaped structures, the shapes and the sizes of the first connecting plate and the second connecting plate are respectively matched with the first limiting groove and the second limiting groove, the first connecting plate and the second connecting plate are connected with the expansion pipe through connecting pieces, and the connecting pieces are made of elastic hard materials.
The top surface of the first connecting plate and the second connecting plate is undetachably connected with the bottom surface of the first opening piece and the second opening piece respectively, the side wall surfaces of the first opening piece and the second opening piece are perpendicular to the top surfaces of the first connecting plate and the second connecting plate respectively, the first opening piece and the second opening piece are both of arc-shaped structures, and the radian of the first opening piece and the radian of the second opening piece are matched with the elliptic outer edge of the bottom plate.
The utility model has the following beneficial effects:
1. when the utility model is used, the outer tube and the inner tube are fixed by using the fixing arm, and the expansion tube can be pushed according to the actual operation requirement to adjust the size of the expansion of the surgical incision.
2. By utilizing the connection of the expansion pipe, the first connecting plate and the second connecting plate which are in slope type tangent structure connection, the first connecting plate and the second connecting plate move to two sides of the bottom plate while the expansion pipe is pushed downwards, and further the first opening sheet and the second opening sheet move outwards to open the surgical incision hole.
3. The bottom plate, the inner tube, the outer tube and the expansion tube are all of elliptical structures, so that the bottom plate, the inner tube, the outer tube and the expansion tube are easier to place in a cut hole of a patient compared with a circular mechanism sleeve, and the elliptical structures are convenient for later-stage sewing.
4. The oval micro-channel system has the advantages that compared with a round micro-channel system, the oval micro-channel system can prolong the longitudinal operation range under the condition that the damage between the articular process and the spinous process is not increased, so that the function of effectively protecting the paravertebral muscles is played for various types of operations such as long truncation of the spine, and the like, and the oval micro-channel system has the unique advantage of effectively treating the pathological changes in the vertebral canal.
Drawings
FIG. 1 is a schematic view of the construction of the bottom plate, inner tube and outer tube of the present invention;
FIG. 2 is a schematic view showing a coupling structure of an expansion pipe and a base plate according to the present invention;
FIG. 3 is a schematic sectional view of the second connecting plate and the expanding tube connecting structure according to the present invention;
fig. 4 is a schematic top view of the bottom plate of the present invention.
The reference numbers in the figures denote:
1. an inner tube; 2. a chute; 3. a first fixing sheet; 4. fixing grooves; 5. a second fixing sheet; 6. an outer tube; 7. a snap ring; 8. an expansion tube; 9. a first spreader sheet; 10. a first connecting plate; 11. a base plate; 12. a second spreader sheet; 13. a second connecting plate; 14. a connecting member; 15. a first limit groove; 16. a slot; 17. a second limit groove.
Detailed Description
The utility model is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1 to 4, the wide-field subcutaneous dilator comprises a bottom plate 11, an inner tube 1 and an outer tube 6 fixedly arranged on the bottom plate 11, a chute 2 arranged between the outer tube 6 and the inner tube 1, a first fixing piece 3 and a second fixing piece 5 integrally connected with the outer tube 6, an expanding tube 8 arranged in the chute 2 and capable of sliding up and down, a first connecting plate 10 and a second connecting plate 13 respectively arranged at two sides of the bottom of the expanding tube 8, wherein a first spreading piece 9 and a second spreading piece 12 are respectively fixed on the first connecting plate 10 and the second connecting plate 13; the top surface of the bottom plate 11 is provided with a slot 16 for clamping the expansion pipe 8, and two sides of the bottom of the expansion pipe 8 are respectively connected with the first connecting plate 10 and the second connecting plate 13 in a slope-type tangent structure.
The bottom plate 11 is an elliptic plate-shaped structure, a first limiting groove 15 and a second limiting groove 17 for placing the first connecting plate 10 and the second connecting plate 13 are respectively arranged on two sides of the bottom plate 11, the first limiting groove 15 and the second limiting groove 17 are both arc-shaped structures, and the first limiting groove 15 and the second limiting groove 17 are symmetrically arranged on two sides of the bottom plate 11.
The top surface of the bottom plate 11 is provided with a slot 16, the slot 16 is of a circular ring structure, the slot 16 is disconnected at the first limiting groove 15 and the second limiting groove 17, and the width of the slot 16 is matched with the thickness of the expansion pipe 8.
The inner side and the outer side of the top surface of the slot 16 are respectively provided with an inner tube 1 and an outer tube 6, the inner tube 1 is flush with the inner side edge of the slot 16, the outer tube 6 is flush with the outer side edge of the slot 16, and the bottom surfaces of the inner tube 1 and the outer tube 6 are both undetachably connected with the top surface of the bottom plate 11.
The inner tube 1 and the outer tube 6 are both elliptical tubular structures, the heights of the inner tube 1 and the outer tube 6 are equal, and the width of the sliding groove 2 arranged between the inner tube 1 and the outer tube 6 is larger than or equal to the thickness of the expansion tube 8.
One side of 6 top faces of outer tube is undetachably equipped with first stationary blade 3 and second stationary blade 5, and first stationary blade 3 and second stationary blade 5 are the arc type structure, and the junction of first stationary blade 3 and second stationary blade 5 forms fixed slot 4 that is used for centre gripping first stationary blade 3 and second stationary blade 5.
The expansion pipe 8 is an elliptical tubular structure, the height of the expansion pipe 8 is larger than the height of the inner pipe 1 and the outer pipe 6, an elliptical clamping ring 7 is arranged at the top of the expansion pipe 8, the clamping ring 7 extends outwards from the top of the expansion pipe 8, and the clamping ring 7 is connected with the expansion pipe 8 in a non-detachable mode.
The both sides of 8 bottom faces of expansion pipe are slope type structures and the slope becomes low to the inner wall by the outer wall of expansion pipe 8 gradually, and the slope of the both sides of 8 bottom faces of expansion pipe is respectively with the slope looks adaptation of first connecting plate 10 and second connecting plate 13.
The first connecting plate 10 and the second connecting plate 13 are both arc-shaped plate-shaped structures, the shapes and sizes of the first connecting plate 10 and the second connecting plate 13 are respectively matched with the first limiting groove 15 and the second limiting groove 17, the first connecting plate 10, the second connecting plate 13 and the expansion pipe 8 are connected through connecting pieces 14, and the connecting pieces 14 are made of elastic hard materials.
The top surfaces of the first connecting plate 10 and the second connecting plate 13 are respectively connected with the bottom surfaces of the first spreading piece 9 and the second spreading piece 12 in a non-detachable mode, the side wall surfaces of the first spreading piece 9 and the second spreading piece 12 are respectively perpendicular to the top surfaces of the first connecting plate 10 and the second connecting plate 13, the first spreading piece 9 and the second spreading piece 12 are both of arc-shaped structures, and the radian of the first spreading piece 9 and the second spreading piece 12 is matched with the elliptical outer edge of the bottom plate 11.
The working principle of the utility model is as follows:
when the utility model is used, firstly, the snake-shaped fixing arm is inserted into the fixing groove 4 to clamp the first fixing plate 3 and the second fixing plate 5, so that the outer tube 6 is fixed on the snake-shaped fixing arm, namely, the whole device is fixed on the snake-shaped fixing arm, the angle of the snake-shaped fixing arm is adjusted after the hole is cut for a patient, so that the bottom plate 11 firstly enters from the cut hole, the bottom plate 11 is arranged at the bottom of the cut hole, the snap ring 7 at the top of the expansion tube 8 is pressed, the expansion tube 8 moves downwards from the sliding groove 2 between the inner tube 1 and the outer tube 6, the bottom of the expansion tube 8 is inserted from the slot 16 on the bottom plate 11 while the expansion tube 8 moves downwards, so that the bottoms at two sides of the expansion tube 8 face the first connecting plate 10 and the second connecting plate 13 to apply force, the slope-shaped structures of the first connecting plate 10 and the second connecting plate 13 respectively move towards the outer parts at two sides of the bottom plate 11 after being applied with force, so that the first and second spreading sheets 9 and 12 fixed on the first and second connecting plates 10 and 13 spread the incised holes of the patient for further operation; after reaming is completed, the clamping ring 7 is lifted upwards, so that the expansion pipe 8 is gradually pulled out from the slot 16, the expansion pipe 8 moves upwards in the sliding groove 2, the first connecting plate 10 and the second connecting plate 13 are simultaneously retracted towards the center direction of the bottom plate 11 under the action of the connecting piece 14, and then the first distraction piece 9 and the second distraction piece 12 are reset, the way of adding a sleeve at one level is omitted in the reaming method, reaming time is saved, the oval micro-channel system is more beneficial to the visual field of operation of doctors, the longitudinal operation range is prolonged under the condition of not increasing damage between the articular process and the spinous process, the function of effectively protecting the paraspinal muscles is achieved for various types of operations such as long truncation of the spine, the special-shaped tunnel has the advantage of effectively treating pathological changes in the spinal canal, and the later-stage rehabilitation of patients is facilitated.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A wide field of view subcutaneous dilator, comprising: the expansion pipe comprises a bottom plate (11), an inner pipe (1) and an outer pipe (6) which are fixedly arranged on the bottom plate (11), a sliding groove (2) arranged between the outer pipe (6) and the inner pipe (1), a first fixing piece (3) and a second fixing piece (5) which are integrally connected with the outer pipe (6), an expansion pipe (8) which is arranged in the sliding groove (2) and slides up and down, a first connecting plate (10) and a second connecting plate (13) which are respectively arranged at two sides of the bottom of the expansion pipe (8), wherein a first opening piece (9) and a second opening piece (12) are respectively fixed on the first connecting plate (10) and the second connecting plate (13); the top surface of the bottom plate (11) is provided with a slot (16) for clamping the expansion pipe (8), and two sides of the bottom of the expansion pipe (8) are respectively connected with the first connecting plate (10) and the second connecting plate (13) in a slope-type tangent structure.
2. A wide-field subcutaneous dilator, as in claim 1, wherein: the bottom plate (11) is of an elliptic plate-shaped structure, a first limiting groove (15) and a second limiting groove (17) which are used for placing a first connecting plate (10) and a second connecting plate (13) are respectively arranged on two sides of the bottom plate (11), the first limiting groove (15) and the second limiting groove (17) are of arc-shaped structures, and the first limiting groove (15) and the second limiting groove (17) are symmetrically arranged on two sides of the bottom plate (11).
3. A wide-field subcutaneous dilator, as recited in claim 2, wherein: a slot (16) is formed in the top surface of the bottom plate (11), the slot (16) is of a circular ring structure, the slot (16) is disconnected at the first limiting groove (15) and the second limiting groove (17), and the width of the slot (16) is matched with the thickness of the expansion pipe (8).
4. A wide-field subcutaneous dilator, as recited in claim 3, wherein: the inside and the outside of slot (16) top face are equipped with inner tube (1) and outer tube (6) respectively, and inner tube (1) is flush with the inboard limit of slot (16) mutually, and outer tube (6) are flush with the outside limit of slot (16) mutually, and the bottom face of inner tube (1) and outer tube (6) all is connected with the top face of bottom plate (11) undetachably.
5. A wide-field subcutaneous dilator, as recited in claim 4, wherein: the inner tube (1) and the outer tube (6) are both elliptical tubular structures, the heights of the inner tube (1) and the outer tube (6) are equal, and the width of the sliding groove (2) arranged between the inner tube (1) and the outer tube (6) is larger than or equal to the thickness of the expansion tube (8).
6. A wide-field subcutaneous dilator, as recited in claim 5, wherein: one side of the top surface of the outer tube (6) is provided with a first fixing piece (3) and a second fixing piece (5) in an undetachable manner, the first fixing piece (3) and the second fixing piece (5) are both arc-shaped structures, and a fixing groove (4) used for clamping the first fixing piece (3) and the second fixing piece (5) is formed at the joint of the first fixing piece (3) and the second fixing piece (5).
7. A wide-field subcutaneous dilator, as recited in claim 5, wherein: expansion pipe (8) are oval type tubular structure, and the height that highly is greater than inner tube (1) and outer tube (6) of expansion pipe (8), and the top of expansion pipe (8) is equipped with oval-shaped snap ring (7), and snap ring (7) extend to the outside from the top of expansion pipe (8), and snap ring (7) and expansion pipe (8) can not be dismantled and be connected.
8. A wide-field subcutaneous dilator, as recited in claim 7, wherein: the two sides of the bottom surface of the expansion pipe (8) are of slope structures, the slope surfaces gradually become lower from the outer wall to the inner wall of the expansion pipe (8), and the slope surfaces of the two sides of the bottom surface of the expansion pipe (8) are respectively matched with the slope surfaces of the first connecting plate (10) and the second connecting plate (13).
9. A wide-field subcutaneous dilator, as recited in claim 8, wherein: the first connecting plate (10) and the second connecting plate (13) are both arc-shaped plate-shaped structures, the shapes and sizes of the first connecting plate (10) and the second connecting plate (13) are respectively matched with the first limiting groove (15) and the second limiting groove (17), the first connecting plate (10) and the second connecting plate (13) are connected with the expansion pipe (8) through a connecting piece (14), and the connecting piece (14) is made of an elastic hard material.
10. A wide-field subcutaneous dilator, as recited in claim 9, wherein: the top surfaces of the first connecting plate (10) and the second connecting plate (13) are respectively undetachably connected with the bottom surfaces of the first spreading piece (9) and the second spreading piece (12), the side wall surfaces of the first spreading piece (9) and the second spreading piece (12) are respectively vertical to the top surfaces of the first connecting plate (10) and the second connecting plate (13), the first spreading piece (9) and the second spreading piece (12) are both of an arc structure, and the radian of the first spreading piece (9) and the radian of the second spreading piece (12) are matched with the elliptic outer edge of the bottom plate (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120338749.2U CN216855487U (en) | 2021-02-05 | 2021-02-05 | Wide-visual-field subcutaneous dilator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120338749.2U CN216855487U (en) | 2021-02-05 | 2021-02-05 | Wide-visual-field subcutaneous dilator |
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| CN216855487U true CN216855487U (en) | 2022-07-01 |
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| CN202120338749.2U Active CN216855487U (en) | 2021-02-05 | 2021-02-05 | Wide-visual-field subcutaneous dilator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112774005A (en) * | 2021-02-05 | 2021-05-11 | 陈春美 | Wide-visual-field subcutaneous dilator |
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2021
- 2021-02-05 CN CN202120338749.2U patent/CN216855487U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112774005A (en) * | 2021-02-05 | 2021-05-11 | 陈春美 | Wide-visual-field subcutaneous dilator |
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