CN210931579U - Hook end rotary embedded type surgical field expanding mechanism - Google Patents
Hook end rotary embedded type surgical field expanding mechanism Download PDFInfo
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- CN210931579U CN210931579U CN201921483712.8U CN201921483712U CN210931579U CN 210931579 U CN210931579 U CN 210931579U CN 201921483712 U CN201921483712 U CN 201921483712U CN 210931579 U CN210931579 U CN 210931579U
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- handle sleeve
- inner handle
- hook
- cutter
- cutter head
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Abstract
The utility model relates to the technical field of medical equipment, in particular to a hook end rotary embedded surgical field expanding mechanism. The novel cutter head comprises an outer handle sleeve, a telescopic cavity, a locking block, a locking sliding groove, a longitudinal groove, a gear shaft, a cutter head, a spring piece, an inner handle sleeve, an inner handle, a cutting knife, a hook-shaped elbow, a hidden cutter pit, a gear sliding groove, a locking bolt and a bolt hole. The right end of the inner handle extends out of the right end of the inner handle sleeve and is combined with the disc-shaped cutter head into a whole. The lower end of the cutter head is provided with an acute-angle cutting knife which is integrated with the cutter head. The utility model provides the high security of operation to cutting efficiency has been improved.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a hook end rotary embedded surgical field expanding mechanism.
Background
The hook-shaped nerve dissector is widely applied to general surgery, spinal surgery and spinal tumor surgery, is mainly used for separating and exposing deep important soft tissues such as nerves, blood vessels, tendons, fascia, dura mater and the like, and plays an important role in creating a clear and clean surgical field. The existing hook nerve stripper consists of an operating rod and a hook head, wherein the hook head is fixedly arranged at the front end of the operating rod, and the existing hook nerve stripper has the defects that: in the process of separating and exposing important soft tissues, the superficial soft tissues covering the surface layer of the important soft tissues are often cut acutely while blunt separation is performed, a plurality of surgical instruments are operated in a narrow surgical space, great trouble is often caused to a surgeon, and in the process of acutely cutting, the danger of damaging the deep important tissues exists.
In order to solve the above problems, the technical solution of 'hook nerve dissector with soft tissue cutter' under application No. 201420654230.5 is that a soft tissue cutter is fixed on the inner side wall of the bending part of the hook head, and the following technical defects exist:
1. when soft tissue nerves are separated and exposed, when the hook-shaped elbow hooks the edge of the incision for traction, the outer end of the hook-shaped head is positioned in the incision, and the cutting edge of the cutting knife is over against the edge of the operation incision, a new incision perpendicular to the original incision can be cut at the edge of the original incision without paying attention, so that unnecessary damage is caused.
2. In the separation process, when the superficial soft tissues are cut off acutely, auxiliary cutting needs to be carried out in the direction parallel to the cut, so that the hook-shaped head can be further peeled off, and the operation view can be further exposed.
3. When the cutting edge is used for cutting the surface soft tissue, the cutting can be implemented only by the relative reciprocating motion between the cutting edge and the soft tissue, the cutting knife is fixed with the hook-shaped head part into a whole, if the cutting is implemented, the hook-shaped head part can only move synchronously with the cutting knife, and thus the traction degree of the hook-shaped head part to the edge of the cut can be influenced.
4. In the drawing process, in order to expose different positions of the incision, the hook-shaped elbow needs to slide along the edge of the incision, and the existence of the fixed and protruded cutting knife not only hinders the movement of the hook-shaped elbow, but also the cutting edge of the fixed and protruded cutting knife inevitably scrapes on the edge of the incision, so that new scratches are caused on the edge of the incision.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hook end rotary embedded surgical field expanding mechanism which can cut the superficial soft tissue timely, accurately and quickly in the process of drawing the incision edge.
Solve the technical problem of the utility model is that:
the hook end rotary embedded type surgical field expanding mechanism consists of an outer handle sleeve, a telescopic cavity, a locking block, a locking chute, a longitudinal groove, a gear shaft, a cutter head, a spring leaf, an inner handle sleeve, an inner handle, a cutting knife, a hook-shaped elbow, a hidden knife pit, a gear chute, a locking bolt and a bolt hole.
The outer handle sleeve is a cylinder with a closed left end and an open right end, a locking chute and a gear chute are sequentially arranged on the side wall of the outer handle sleeve from left to right, a plurality of bolt holes are formed in the inner wall of the outer handle sleeve and are arranged in two rows, and the bolt holes in each row are arranged at equal intervals along the longitudinal direction of the outer handle sleeve.
The outer side wall of the open end of the outer handle sleeve is provided with a cylindrical hook-shaped elbow which is integrated with the outer handle sleeve into a whole, and the bottom end of the hook-shaped elbow is hemispherical. The side wall of the hook-shaped elbow is provided with a hidden knife pit.
The inner handle sleeve is cylindrical and is positioned in the outer handle sleeve and forms a clearance fit with the outer handle sleeve.
The side wall of the inner handle sleeve is provided with a telescopic cavity, a spring piece is arranged in the telescopic cavity, a locking block and two locking bolts are arranged above the spring piece, the locking block and the two locking bolts are pressed on the spring piece and are also arranged in the telescopic cavity, the two locking bolts are arranged on two sides of the locking block and are respectively arranged under a row of bolt holes, the locking block and the locking bolts are integrated, and the cross section of the integration of the locking block and the locking bolts is in a shape like a Chinese character 'shan'. The upper ends of the locking blocks extend out from the center of the top of the telescopic cavity, penetrate through the lock sliding grooves and are in clearance fit with the lock sliding grooves, and the upper ends of the two locking bolts also extend out from the top of the telescopic cavity, are inserted into the bolt holes corresponding to the locking bolts respectively and are in clearance fit with the bolt holes.
A gap is formed in the side wall of the inner handle sleeve, a gear shaft is arranged in the gap, and the axis line of the gear shaft is parallel to the axis line of the inner handle sleeve. The gear is also arranged in the gap and sleeved on the gear shaft and is in clearance fit with the gear shaft and the gap. The gear wheel engages a longitudinal slot located on the inner shank.
The inner handle penetrates through the inner handle sleeve and is in clearance fit with the inner handle sleeve, and the left end of the inner handle extends out of the left end of the inner handle sleeve and is combined with a cylinder into a whole. The diameter of the cylinder is equal to the outer diameter of the inner handle sleeve. The right end of the inner handle extends out of the right end of the inner handle sleeve and is combined with the disc-shaped cutter head into a whole. The diameter of the cutter head is equal to the outer diameter of the inner handle sleeve, the lower end of the cutter head is provided with a cutting knife which is in an acute angle shape and integrated with the cutter head, the tip end of the cutting knife faces downwards, and two side edges of the cutting knife are provided with cutting edges. The shape and size of the cutting knife are mutually matched with the space shape in the hidden knife pit.
Under the condition that the cutter does not need to work, the cutter head is positioned in the end head of the outer handle sleeve, and the cutter is embedded in the hidden cutter pit.
When shallow soft tissue at the edge of an incision needs to be cut, the locking block is pressed downwards by a thumb, the two locking bolts move downwards along with the locking block and are separated from the bolt holes, then the locking block slides towards the opening end of the outer handle sleeve, the inner handle sleeve and the cutting knife extend out from the opening end of the outer handle sleeve under the pushing of the locking block, when the extending distance of the cutting knife meets the requirement, the locking block stops being pressed, at the moment, the locking block and the locking bolts move upwards under the pushing of the elastic piece, and the two locking bolts are inserted into the bolt holes corresponding to the locking block again. At this time, the longitudinal position of the cutter is locked. Then, the gear is shifted by a thumb to rotate the gear, the rotation of the gear drives the inner handle to rotate, so that the cutting knife rotates around the axial lead of the inner handle, and the cutting edge of the cutting knife cuts corresponding soft tissues in the rotating process of the cutting knife.
Adopt above-mentioned scheme, compare with prior art, the utility model discloses it is following showing the progress to have:
1. when the hook-shaped elbow hooks the edge of the incision for traction, the cutting knife can be hidden in the knife hiding pit, so that the cutting knife is prevented from damaging the edge of the incision in the process of drawing the incision, and the safety of the operation is improved.
2. The plane of the cutting edge of the cutting knife is vertical to the axial lead of the outer handle sleeve, so that the cutting knife can cut in the direction parallel to the incision, and the function of further exposing the operation visual field can be achieved.
3. Because only need stir the motion that the gear just can control the cutting knife with the thumb, make it cut the soft tissue, just so realized under the prerequisite of unmovable hook-like elbow, freely use the cutting knife, compare with prior art, simplify these two these loaded down with trivial details operations that need two hands into a very convenient and fast's one-hand operation with the tractive and cut, simultaneously, because the utility model discloses eliminate the interference of hook-like elbow when the motion is to the cutting knife cutting, improved the degree of accuracy and the cutting efficiency of cutting.
Drawings
FIG. 1 is a schematic structural view of the present invention with the cutter hidden in the hook-shaped elbow;
FIG. 2 is a schematic structural view of the present invention when the cutter is extended from the hook-shaped elbow;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 1;
fig. 5 is a schematic view of a cross-sectional structure B-B of fig. 1.
In the figure: 01. outer handle sleeve 02, telescopic cavity 03, locking block 04, locking sliding groove 05, longitudinal groove 06, gear 07, gear shaft 08, cutter head 09, spring leaf 10, inner handle sleeve 11, inner handle 12, cutting knife 13, hook bend 14, hidden cutter pit 15, gear sliding groove 16, locking bolt 17, bolt hole
Detailed Description
The invention is further described with reference to the following figures and examples.
The hook end rotary embedded type surgical field expanding mechanism comprises an outer handle sleeve 01, a telescopic cavity 02, a locking block 03, a locking sliding groove 04, a longitudinal groove 05, a gear 06, a gear shaft 07, a cutter head 08, a spring leaf 09, an inner handle sleeve 10, an inner handle 11, a cutter 12, a hook-shaped elbow 13, a hidden cutter pit 14, a gear sliding groove 15, a locking bolt 16 and a bolt hole 17.
The outer handle sleeve 01 is a cylinder with a closed left end and an open right end, a lock sliding groove 04 and a gear sliding groove 15 are sequentially formed in the side wall of the outer handle sleeve 01 from left to right, a plurality of bolt holes 17 are formed in the inner wall of the outer handle sleeve 01, the bolt holes 17 are arranged in two rows, and the bolt holes 17 in each row are arranged at equal intervals along the longitudinal direction of the outer handle sleeve 01.
The outer side wall of the open end of the outer handle sleeve 01 is provided with a cylindrical hook-shaped elbow 13 which is integrated with the outer handle sleeve 01 into a whole, and the bottom end of the hook-shaped elbow 13 is hemispherical. A hidden knife pit 14 is arranged on the side wall of the hook-shaped elbow 13.
The inner handle sleeve 10 is cylindrical, and the inner handle sleeve 10 is arranged in the outer handle sleeve 01 and is in clearance fit with the outer handle sleeve 01.
The side wall of the inner handle sleeve 10 is provided with a telescopic cavity 02, a spring leaf 09 is arranged in the telescopic cavity 02, a locking block 03 and two locking bolts 16 which are pressed on the spring leaf 09 and are also arranged in the telescopic cavity 02 are arranged above the spring leaf 09, the two locking bolts 16 are arranged on two sides of the locking block 03 and are respectively arranged right below a row of bolt holes 17, the locking block 03 and the locking bolts 16 are integrated, and the cross section of the locking block 03 and the cross section of the locking bolts 16 are in a shape of Chinese character 'shan'. The upper ends of the locking blocks 03 extend out from the center of the top of the telescopic cavity 02, penetrate through the lock sliding grooves 04 and are in clearance fit with the lock sliding grooves 04, and the upper ends of the two locking bolts 16 also extend out from the top of the telescopic cavity 02 respectively, are inserted into the corresponding bolt holes 17 respectively and are in clearance fit with the bolt holes 17.
A gap is formed in the side wall of the inner handle sleeve 10, a gear shaft 07 is arranged in the gap, and the axis line of the gear shaft 07 is parallel to the axis line of the inner handle sleeve 10. The gear 06 is also in the gap and is sleeved on the gear shaft 07 and is in clearance fit with the gear shaft 07 and the gap. The gear wheel 06 meshes with a longitudinal groove 05 located on the inner shank 11.
The inner handle 11 penetrates through the inner handle sleeve 10 and is in clearance fit with the inner handle sleeve 10, and the left end of the inner handle 11 extends out of the left end of the inner handle sleeve 10 and is integrated with a cylinder. The diameter of the cylinder is equal to the outer diameter of the inner sleeve 10. The right end of the inner handle 11 extends from the right end of the inner handle sleeve 10 and is integrated with the disc-shaped cutter head 08. The diameter of the cutter head 08 is equal to the outer diameter of the inner handle sleeve 10, an acute-angle cutting knife 12 which is integrated with the cutter head 08 is arranged at the lower end of the cutter head 08, the tip end of the cutting knife 12 faces downwards, and cutting edges are arranged on two side edges of the cutting knife 12. The shape and size of the cutting knife 12 are matched with the space shape in the hidden knife pit 14.
Under the condition that the cutter 12 does not need to work, the cutter head 08 is positioned in the end head of the outer handle sleeve 01, and the cutter 12 is embedded in the hidden cutter pit 14.
When shallow soft tissues at the edge of an incision need to be cut, the locking block 03 is pressed downwards by a thumb, the two locking bolts 16 move downwards along with the locking block 03 and are separated from the bolt holes 17, then the locking block 03 slides towards the opening end of the outer handle sleeve 01, the inner handle sleeve 10 and the cutting knife 12 extend out from the opening end of the outer handle sleeve 01 under the pushing of the locking block 03, when the extending distance of the cutting knife 12 meets the requirement, the locking block 03 is stopped being pressed, at the moment, the locking block 03 and the locking bolts 16 move upwards under the pushing of the elastic force of the spring piece 09, and the two locking bolts 16 are inserted into the bolt holes 17 corresponding to the locking block 03 again. At this time, the longitudinal position of the cutter 12 is locked. Then, the gear 06 is shifted by a thumb to rotate the gear 06, the rotation of the gear 06 drives the inner handle 11 to rotate, so that the cutting knife 12 rotates around the axial lead of the inner handle 11, and the cutting edge of the cutting knife 12 cuts corresponding soft tissues in the rotating process of the cutting knife 12.
Claims (5)
1. The utility model provides a hook end rotation embedded type surgical field expanding mechanism, comprises outer handle cover, flexible chamber, locking block, lock spout, vertical groove, gear shaft, blade disc, spring leaf, inner handle cover, inner handle, cutting knife, hook-shaped elbow, hidden sword hole, gear runner, dead bolt and bolt hole, characterized by: the outer handle sleeve is a cylinder with a closed left end and an open right end, a lock sliding groove and a gear sliding groove are sequentially formed in the side wall of the outer handle sleeve from left to right, a plurality of bolt holes are formed in the inner wall of the outer handle sleeve, a cylindrical hook-shaped elbow integrated with the outer handle sleeve is arranged on the outer side wall of the open end of the outer handle sleeve, the bottom end of the hook-shaped elbow is hemispherical, a hidden tool pit is formed in the side wall of the hook-shaped elbow, the inner handle sleeve is cylindrical, the inner handle sleeve is positioned in the outer handle sleeve and in clearance fit with the outer handle sleeve, a telescopic cavity is formed in the side wall of the inner handle sleeve, a spring piece is arranged in the telescopic cavity, a locking block and two locking bolts are arranged above the spring piece and also positioned in the telescopic cavity, the two locking bolts are positioned on two sides of the locking block and respectively positioned under a row of bolt holes, the locking block and the locking bolts are integrated, the upper end of the locking block extends out of the top center of the telescopic cavity, penetrates through the lock sliding groove and, the upper ends of the two locking bolts respectively extend out of the top of the telescopic cavity and are respectively inserted into the corresponding bolt holes and form a clearance fit relation with the bolt holes, a gap is formed on the side wall of the inner handle sleeve, a gear shaft is arranged in the gap, a gear is also arranged in the gap, is sleeved on the gear shaft and simultaneously forms a clearance fit relation with the gear shaft and the gap, the gear is meshed with a longitudinal groove on the inner handle, the inner handle penetrates through the inner handle sleeve and forms a clearance fit relation with the inner handle sleeve, the left end of the inner handle extends out of the left end of the inner handle sleeve and is combined with a cylinder into a whole, the diameter of the cylinder is equal to the outer diameter of the inner handle sleeve, the right end of the inner handle extends out of the right end of the inner handle sleeve and is combined with a disc-shaped cutter head into a whole, the lower end of the cutter head is provided with an acute angle shape which is integrated with the cutter head, and the tip, the two sides of the cutter are provided with cutting edges, the shape and size of the cutter are matched with the space shape in the hidden cutter pit, under the condition that the cutter does not need to work, the cutter head is positioned in the end head of the outer handle sleeve, and the cutter is embedded in the hidden cutter pit.
2. The hook end rotating embedded surgical field expanding mechanism of claim 1, wherein: each row of the bolt holes in the two rows of the bolt holes are arranged at equal intervals along the longitudinal direction of the outer handle sleeve.
3. The hook end rotating embedded surgical field expanding mechanism of claim 1, wherein: the cross section of the locking block and the locking bolt is in a shape like a Chinese character 'shan'.
4. The hook end rotating embedded surgical field expanding mechanism of claim 1, wherein: the axial lead of the gear shaft is parallel to the axial lead of the inner handle sleeve.
5. The hook end rotating embedded surgical field expanding mechanism of claim 1, wherein: the diameter of the cutter head is equal to the outer diameter of the inner handle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921483712.8U CN210931579U (en) | 2019-09-08 | 2019-09-08 | Hook end rotary embedded type surgical field expanding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921483712.8U CN210931579U (en) | 2019-09-08 | 2019-09-08 | Hook end rotary embedded type surgical field expanding mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN210931579U true CN210931579U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921483712.8U Active CN210931579U (en) | 2019-09-08 | 2019-09-08 | Hook end rotary embedded type surgical field expanding mechanism |
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| CN (1) | CN210931579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393574A (en) * | 2019-09-08 | 2019-11-01 | 成都市第二人民医院 | Hook-shaped nerve dissector with Timely Aid cutting function |
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2019
- 2019-09-08 CN CN201921483712.8U patent/CN210931579U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393574A (en) * | 2019-09-08 | 2019-11-01 | 成都市第二人民医院 | Hook-shaped nerve dissector with Timely Aid cutting function |
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