CN108478242B - Minimally invasive surgery spreader - Google Patents
Minimally invasive surgery spreader Download PDFInfo
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- CN108478242B CN108478242B CN201810405532.1A CN201810405532A CN108478242B CN 108478242 B CN108478242 B CN 108478242B CN 201810405532 A CN201810405532 A CN 201810405532A CN 108478242 B CN108478242 B CN 108478242B
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- Prior art keywords
- sleeve
- caliber
- minimally invasive
- driving
- small
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
Abstract
The invention relates to a minimally invasive surgery spreader which comprises a sleeve, wherein the sleeve is arranged in a hollow manner, a through channel is arranged on the side surface of one end of the sleeve, telescopic mechanisms are arranged at two ends of the channel, each telescopic mechanism comprises a large-caliber sleeve and at least one small-caliber sleeve, the large-caliber sleeves are sleeved with the small-caliber sleeves, the minimally invasive surgery spreader also comprises a pushing piece used for pushing the telescopic mechanisms and a driving assembly used for driving the pushing piece to move towards the direction of the telescopic mechanisms, and a positioning mechanism used for positioning the states of the pushing piece is arranged between the driving assembly and the sleeve. In the operation, the driving assembly is operated to drive the pushing piece to push the small-caliber external member to move, so that the state of the telescopic mechanism is changed, the operation of the operation is simplified, the operation wound is reduced, the state of the driving assembly is changed by moving the position of the driving assembly in the sleeve, the extending distance of the small-caliber external member is changed, and the small-caliber external member is selectively positioned according to the requirement, so that the optimal operation visual field is obtained.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a minimally invasive surgery spreader.
Background
When a medical worker performs a minimally invasive operation on a patient, because an incision cut during the operation cannot be too large, the incision is too small, great difficulty is brought to the operation of the medical worker, and the incision which is too small is easy to automatically close, so that the operation cannot be performed, a minimally invasive operation spreader is needed to help the medical worker to spread the incision to help the medical worker perform the operation, if the incision cannot be spread, the operation cannot be performed, the existing minimally invasive operation spreader spreads the size of the incision by tightly holding and loosening a handle part, so that the medical worker needs to greatly spread an arm to perform the operation in the using process, the stability of the arm is influenced, and avoidable risks are brought to the operation, and secondly, the spreading distance cannot be fixed, a general assistant needs to perform the assistance, and because the standing position is shielded, the medical worker cannot perform the best performance and take time, it is laborious.
Disclosure of Invention
In conclusion, in order to overcome the defects of the prior art, the invention provides the minimally invasive surgery spreader which reduces manpower and can adjust the distance.
In order to achieve the purpose, the invention provides the following technical scheme: a minimally invasive surgery distractor comprises a sleeve, wherein the sleeve is arranged in a hollow manner, a through channel is arranged on the side face of one end of the sleeve, telescopic mechanisms are arranged at two ends of the channel, each telescopic mechanism comprises a large-caliber sleeve part and at least one small-caliber sleeve part, the large-caliber sleeve part is sleeved with the small-caliber sleeve part, the minimally invasive surgery distractor further comprises a pushing part for pushing the telescopic mechanisms and a driving assembly for driving the pushing part to move towards the telescopic mechanisms, a positioning mechanism for positioning the pushing part state is arranged between the driving assembly and the sleeve, the driving assembly comprises two driving rods and a first compression spring, the two driving rods are hinged with the other end of the pushing part, the first compression spring is arranged between the two driving rods, the driving rods can move up and down along the sleeve, and a positioning mechanism for positioning the pushing part state is arranged between the driving rods and, the length of the driving rod is larger than that of the sleeve, and the driving rod extends out of the sleeve.
By adopting the technical scheme, in the operation, the telescopic mechanism of the minimally invasive surgery spreader is inserted into the incision, the driving component drives the pushing piece to move towards the telescopic mechanism to push the telescopic mechanism, the telescopic mechanism spreads the incision size, the positioning mechanism selectively positions the pushing piece state according to the requirement so as to position the state of the telescopic mechanism and position the size of the spread incision, the operation of the operation is simplified, the trauma of the operation is reduced, the optimal operation visual field is obtained, the spring arranged between the two driving rods enables the two driving rods to have elasticity, the driving component is in the springing-open state without the intervention of external force, the mode that the existing minimally invasive surgery spreader spreads the incision size by the clamping and loosening of the handle part is changed, the stability is strong, the structure is simple, the use is convenient, and the distance between the driving rods can be compressed by applying force to the driving component so as to facilitate the driving component to move up and down in the sleeve, the moving distance of the pushing piece is changed by changing the size of the included angle between the driving rods, and the length of the driving rods is larger than that of the sleeve, so that when the driving rods move up and down in the sleeve, a part of the driving rods can be always outside the sleeve, and the medical staff can operate the medical device conveniently.
The invention further provides that: the small-caliber sleeve is provided with a baffle plate on the opposite side relative to the sleeve, and the pushing piece is abutted against the baffle plate.
By adopting the technical scheme, the baffle is arranged outside the small-caliber sleeve part, so that the pushing piece moves up and down along the baffle along with the driving rod, and the pushing piece is abutted against the baffle.
The invention further provides that: the positioning mechanism comprises a positioning part arranged on one side of the driving assembly corresponding to the telescopic mechanism and a cover plate arranged on the other end of the sleeve opposite to the telescopic mechanism, a through hole is formed in the cover plate, and the through hole is matched with the positioning part.
Through adopting above-mentioned technical scheme, cooperate through the through-hole of location portion on the actuating lever and apron and fix a position drive assembly's elasticity change.
The invention further provides that: the positioning part comprises a plurality of convex blocks, and the distance between the convex blocks is larger than the thickness of the cover plate.
By adopting the technical scheme, the positioning part comprises the plurality of convex blocks, so that the multi-gear positioning of the driving assembly can be realized when different knife edge sizes are required to be fixed, the distance between the plurality of convex blocks is larger than the thickness of the cover plate, and the stability of the cover plate is improved.
The invention further provides that: and a clamping plate for preventing the driving component from sliding downwards is arranged on the convex block.
Through adopting above-mentioned technical scheme, increase the cardboard on the lug, prevent that drive assembly from gliding, make drive assembly more stable, reliable.
The invention further provides that: the telescopic mechanism is used as the lower part, the length of the lug is gradually increased from top to bottom, and the length of the lug is matched with the extension distance of the required telescopic mechanism.
By adopting the technical scheme, when the driving rods move up and down in the sleeve, the size of an included angle between the two driving rods can be adjusted through the matching of the lugs with different lengths and the cover plate according to different requirements, so that the position of the pushing piece is moved, and then the pushing piece pushes the small-caliber sleeve to change the size of a knife edge required for opening.
The invention further provides that: the guide rail is arranged in the large-caliber external member, a clamping block matched with the guide rail of the adjacent large-caliber external member is arranged at one end, close to the sleeve, outside the small-caliber external member, and the small-caliber external member is sleeved in the large-caliber external member and can extend out or retract along the guide rail through the matching of the clamping block and the guide rail.
By adopting the technical scheme, the telescopic mechanism comprises a plurality of sequentially connected external members, the clamping block at one end outside any small-caliber external member is matched with the adjacent large-caliber guide rail and can extend out or retract along the guide rail, the size of the opening of the knife is changed by matching between the external members, the stability of the telescopic mechanism is enhanced, the thickness of the telescopic mechanism in the contraction state is greatly reduced, and a better operation environment is provided for minimally invasive surgery.
The invention further provides that: the guide rail is internally provided with a second compression spring, two ends of the guide rail are provided with limit blocks for preventing the second compression spring or the fixture block from being separated from the guide rail, and the second compression spring is arranged between the limit block opposite to the sleeve and the fixture block.
Through adopting above-mentioned technical scheme, the second compression spring that sets up through the guide rail makes telescopic machanism flexible have elasticity, when not receiving the promotion of impeller, can contract automatically, and is more simple and convenient, and is equipped with through the setting of the stopper at guide rail both ends and prevents that second compression spring or fixture block from breaking away from the guide rail, makes telescopic machanism more stable, reliable.
The following describes embodiments of the present invention with reference to the drawings and examples.
Drawings
FIG. 1 is a first usage state diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a cross-sectional view of the structure of FIG. two in use according to an embodiment of the present invention;
FIG. 4 is an enlarged view of the portion B of FIG. 3;
FIG. 5 is an enlarged view of section C of FIG. 3;
FIG. 6 is a cross-sectional view of the telescoping mechanism in a retracted state in accordance with an embodiment of the present invention;
FIG. 7 is an enlarged view of section D of FIG. 6;
FIG. 8 is a block diagram of the drive assembly and pusher member of an embodiment of the present invention.
Reference numerals: 1. the automatic clutch comprises a sleeve, a telescopic mechanism, a large-caliber sleeve, a guide rail, a limiting block, a guide rail, a small-caliber sleeve, a baffle, a large-caliber sleeve.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Referring to fig. 1-8, the minimally invasive surgery distractor disclosed in this embodiment includes a sleeve 1, the sleeve 1 is hollow, a through channel is disposed on a side surface of one end of the sleeve 1, telescopic mechanisms 2 are disposed at two ends of the channel, each telescopic mechanism 2 includes a large-diameter sleeve 21 and at least one small-diameter sleeve 22, the large-diameter sleeve 21 and the small-diameter sleeve 22 are sleeved with each other, the minimally invasive surgery distractor further includes a pushing member 3 for pushing the telescopic mechanism 2 and a driving assembly 4 for driving the pushing member 3 to move toward the telescopic mechanism 2, a positioning mechanism 5 for positioning a state of the pushing member 3 is disposed between the driving assembly 4 and the sleeve 1, the driving assembly 4 includes two driving rods 41 and a first compression spring 42, the two driving rods 41 are hinged with respect to the other end of the pushing member 3, the first compression spring 42 is disposed between the two driving rods 41, the driving rod 41 can move up and down along the sleeve 1, a positioning mechanism 5 for positioning the state of the pushing piece 3 is arranged between the driving rod 41 and the sleeve 1, the length of the driving rod 41 is greater than that of the sleeve 1, and part of the driving rod 41 extends out of the sleeve 1.
The embodiment further provides that: the small-caliber sleeve 22 is provided with a baffle 221 on the opposite side relative to the sleeve 1, and the pushing piece 3 is abutted against the baffle 221.
The embodiment further provides that: the positioning mechanism 5 comprises a positioning portion 51 arranged on one side of the driving assembly 4 corresponding to the telescopic mechanism 2 and a cover plate 52 arranged on the other end of the sleeve 1 opposite to the telescopic mechanism 2, wherein a through hole 521 is formed in the cover plate 52, and the through hole 521 is matched with the positioning portion 51.
The embodiment further provides that: the positioning portion 51 includes a plurality of bumps 511, and a distance between the bumps 511 is greater than a thickness of the cover plate 52.
The embodiment further provides that: the projection 511 is provided with a catch plate 512 for preventing the drive assembly 4 from sliding downwards.
The embodiment further provides that: the telescopic mechanism 2 is used as the lower part, the length of the convex block 511 is gradually increased from top to bottom, and the length of the convex block 511 is matched with the extension distance of the required telescopic mechanism 2.
The embodiment further provides that: a guide rail 211 is arranged in the large-caliber sleeve 21, a fixture block 222 matched with the guide rail 211 of the adjacent large-caliber sleeve 21 is arranged at one end, close to the sleeve 1, outside the small-caliber sleeve 22, and the small-caliber sleeve 22 is sleeved in the large-caliber sleeve 21 and can extend or retract along the guide rail 211 through the matching of the fixture block 222 and the guide rail 211.
The embodiment further provides that: a second compression spring 212 is arranged in the guide rail 211, two ends of the guide rail 211 are provided with a limit block 213 for preventing the second compression spring 212 or the fixture block 222 from being separated from the guide rail 211, and the second compression spring 212 is arranged between the limit block 213 and the fixture block 222 at the opposite end of the sleeve 1.
Although the terms of the sleeve 1, the telescopic mechanism 2, the large-diameter sleeve 21, the guide rail 211, the second compression spring 212, the limiting block 213, the small-diameter sleeve 22, the baffle 221, the fixture 222, the pushing member 3, the driving assembly 4, the driving rod 41, the first compression spring 42, the positioning mechanism 5, the positioning portion 51, the protrusion 511, the clamping plate 512, the cover plate 52, the through hole 521, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. A minimally invasive surgery spreader is characterized in that: the device comprises a sleeve, wherein the sleeve is arranged in a hollow manner, a through channel is arranged on the side surface of one end of the sleeve, telescopic mechanisms are arranged at two ends of the channel, each telescopic mechanism comprises a large-caliber external member and at least one small-caliber external member, the large-caliber external members are sleeved with the small-caliber external members, the device also comprises a pushing member used for pushing the telescopic mechanisms and a driving assembly used for driving the pushing member to move towards the telescopic mechanisms, a positioning mechanism used for positioning the pushing member state is arranged between the driving assembly and the sleeve, the driving assembly comprises two driving rods and a first compression spring, the two driving rods are hinged relative to the other end of the pushing member, the first compression spring is arranged between the two driving rods, the driving rods can move up and down along the sleeve, and a positioning mechanism used for positioning the pushing member state is arranged between, the length of the driving rod is larger than that of the sleeve, and the driving rod extends out of the sleeve.
2. The minimally invasive surgical spreader of claim 1, wherein: the small-caliber sleeve is provided with a baffle plate on the opposite side relative to the sleeve, and the pushing piece is abutted against the baffle plate.
3. The minimally invasive surgical spreader of claim 1, wherein: the positioning mechanism comprises a positioning part arranged on one side of the driving assembly corresponding to the telescopic mechanism and a cover plate arranged on the other end of the sleeve opposite to the telescopic mechanism, a through hole is formed in the cover plate, and the through hole is matched with the positioning part.
4. The minimally invasive surgical spreader of claim 3, wherein: the positioning part comprises a plurality of convex blocks, and the distance between the convex blocks is larger than the thickness of the cover plate.
5. The minimally invasive surgical spreader of claim 4, wherein: and a clamping plate for preventing the driving component from sliding downwards is arranged on the convex block.
6. The minimally invasive surgical spreader of claim 4, wherein: the telescopic mechanism is used as the lower part, the length of the lug is gradually increased from top to bottom, and the length of the lug is matched with the extension distance of the required telescopic mechanism.
7. The minimally invasive surgical spreader of claim 1, wherein: the guide rail is arranged in the large-caliber external member, a clamping block matched with the guide rail of the adjacent large-caliber external member is arranged at one end, close to the sleeve, outside the small-caliber external member, and the small-caliber external member is sleeved in the large-caliber external member and can extend out or retract along the guide rail through the matching of the clamping block and the guide rail.
8. The minimally invasive surgical spreader according to claim 7, wherein: the guide rail is internally provided with a second compression spring, two ends of the guide rail are provided with limit blocks for preventing the second compression spring or the fixture block from being separated from the guide rail, and the second compression spring is arranged between the limit block opposite to the sleeve and the fixture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810405532.1A CN108478242B (en) | 2018-04-29 | 2018-04-29 | Minimally invasive surgery spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810405532.1A CN108478242B (en) | 2018-04-29 | 2018-04-29 | Minimally invasive surgery spreader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108478242A CN108478242A (en) | 2018-09-04 |
| CN108478242B true CN108478242B (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810405532.1A Active CN108478242B (en) | 2018-04-29 | 2018-04-29 | Minimally invasive surgery spreader |
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| CN (1) | CN108478242B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014207900A1 (en) * | 2014-04-28 | 2015-10-29 | Aesculap Ag | Jaw part for a surgical tubular shaft instrument |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2738738Y (en) * | 2004-10-21 | 2005-11-09 | 杨希中 | Automatic pull-hook device for rectal cancer |
| CN105078520A (en) * | 2015-08-03 | 2015-11-25 | 杭州欧创医疗器械有限公司 | Antenna expander |
| CN205924083U (en) * | 2016-05-03 | 2017-02-08 | 程存涛 | Minimally invasive surgery opening pressurizer |
| CN207101307U (en) * | 2017-03-10 | 2018-03-16 | 中国人民解放军第三军医大学 | Retractor for abdominal wall |
| CN107874793A (en) * | 2017-11-27 | 2018-04-06 | 无锡圣诺亚科技有限公司 | Micro-wound tissue dilator |
| CN209059297U (en) * | 2018-04-29 | 2019-07-05 | 温州市人民医院 | A kind of Minimally Invasive Surgery dilator |
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2018
- 2018-04-29 CN CN201810405532.1A patent/CN108478242B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014207900A1 (en) * | 2014-04-28 | 2015-10-29 | Aesculap Ag | Jaw part for a surgical tubular shaft instrument |
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| CN108478242A (en) | 2018-09-04 |
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