CN209966539U - Fine adjustment working sleeve for establishing minimally invasive screw channel around pelvis and acetabulum - Google Patents
Fine adjustment working sleeve for establishing minimally invasive screw channel around pelvis and acetabulum Download PDFInfo
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- CN209966539U CN209966539U CN201920580817.9U CN201920580817U CN209966539U CN 209966539 U CN209966539 U CN 209966539U CN 201920580817 U CN201920580817 U CN 201920580817U CN 209966539 U CN209966539 U CN 209966539U
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Abstract
A fine-tuning working sleeve established by a ring pelvis and acetabulum minimally-invasive screw channel comprises a sleeve body, wherein the sleeve body comprises a head part, a channel part and a tip part; the upper end of the head part is provided with an opening which takes the center of the head part as the center, three inlet holes which are arranged in the head part and are arranged in parallel at intervals are arranged in the opening, and the circle center of the inlet hole arranged in the middle is the same as the center of the opening; a channel hole which penetrates through the channel part and is matched with the inlet hole is formed in the channel part; the tip part is internally provided with an outlet hole which penetrates through the tip part and is matched with the channel hole, and the outlet hole arranged in the middle is provided with a notch which extends into the tip part along the bottom surface of the tip part. The utility model has simple operation, the sleeve can be reused and disinfected, and the cost is saved. Improve handheld stability through the head recess and be convenient for operation, through each little inlet hole, the hollow screw guide pin penetrates so that location and the fine setting of needle inlet point to improve the safe establishment of minimal access surgery screw passageway, reduce the damage and effectively improve the accurate safe operation of wicresoft and put the nail quality simultaneously.
Description
Technical Field
The utility model provides a fine setting work sleeve that is arranged in encircling pelvis, the fixed operation of acetabular bone wicresoft screw to establish screw passageway relates to pelvis, when the acetabular bone is fractured the sacroiliac screw of ring damage behind the pelvis, the LC-II screw of iliac wing fracture and instrument that needle points such as preceding back post screw of acetabular bone finely tune and the passageway is established belongs to orthopedics medical instrument field.
Background
The pelvis is always a difficult point for orthopedic treatment of trauma due to complex anatomical structure, dense peripheral blood vessels and nerves, various fracture displacement modes and the like. Unstable pelvic fractures, i.e., rotationally unstable or vertically unstable pelvic ring fractures, often involve injury to the posterior sacroiliac ligamentous complex of the pelvis and its surroundings, and injury to the anterior ring pubic symphysis and its surroundings. Frequently combined with severe hemorrhage, shock, abdominal cavity and pelvic cavity important organ injury, thus having high complication and mortality. The pelvis is accurately reduced in an early stage and fixed and stabilized immediately, related complications can be reduced, and the prognosis is improved. In the past, the treatment focus is on the life rescue of patients, conservative treatment is mostly adopted for pelvic fracture, and the patients may have different degrees of disabilities. In recent years, with intensive studies on the anatomy, biomechanics and injury mechanism of pelvic fractures, there has been an increasing demand for intra-operative fixation treatment of unstable pelvic fractures after stabilization of hemodynamics.
With the popularization of the minimally invasive surgery concept, many scholars at home and abroad explore the minimally invasive treatment of pelvic and acetabular fractures. The minimally invasive pelvic fracture fixation is favored by a plurality of scholars at home and abroad due to the advantages of small trauma, less bleeding, being beneficial to the implementation in an emergency state and the like. Since the pelvis is in a complicated anatomical form, deep parts are involved, many dangerous great vessels, important nerves and internal organs are involved, the sacral plexus or the internal organs are damaged if the pelvis is careless, and serious patients die due to uncontrollable great bleeding during the operation, so that the technical requirements on pelvis operators are very high. Therefore, alternative surgical approaches to fracture fixation by minimally invasive techniques are currently sought in the clinic. With the development of imaging and surgical techniques, minimally invasive screw fixation techniques for treating pelvic and acetabular fractures have become possible and have received increasing attention. The technique has the advantages of small injury, less bleeding, low cost, short time for lying in bed, low complication incidence and the like, so the technique becomes a more ideal minimally invasive treatment for the pelvic fracture, and has attracted attention in recent years.
Since the sacroiliac joint injury and the sacral longitudinal fracture of the posterior pelvic ring fixed by screws across the sacroiliac joint, in recent years, there have been reports of minimally invasive screw fixation techniques for the pelvic ring to treat pelvic fractures, including posterior sacroiliac screw fixation, anteroposterior screw antegrade and retrograde fixation for pubic ramus and acetabular fractures, LC-II screws for longitudinal and crescent fractures, pelvis anterior ring Infix fixation, pubic symphysis screw fixation for symphysis separation, posterior pelvic column screws for posterior iliac fractures, and so on. The percutaneous screw fixation of pelvic fracture is confirmed by most students due to minimal trauma and reliable fixation, but has high requirements on reduction, requires doctors to have deeper understanding on the local anatomy of the pelvis and has rich operation experience. Because the minimally invasive screw fixation technology is different from the traditional internal fixation under direct vision of incision reduction, the safety of a screw channel of the minimally invasive screw fixation technology is ensured by means of monitoring operations of a C-arm machine, a G-arm machine, a CT (computed tomography) or a navigation machine and the like, although the minimally invasive screw fixation technology is minimally invasive, the operation risk is obviously increased, cases of death caused by screw injury to the pelvic great vessel are reported in documents, and complications such as nerve injury, pelvic organ injury, poor fixed position, poor fixation, broken screw and the like exist. The most important key point for the application of the technology is the limitation of the technical problems of needle insertion point, the diameter of a screw channel, needle insertion direction and the like. The method is particularly important for the minimally invasive pelvic surgery of the acetabulum, when the pelvis and the acetabulum are fractured, the screw channels such as sacroiliac screws damaged in the posterior pelvic ring, LC-II screws for fracture of the ilium wing, suprapubic, anterior and posterior column screws of acetabulum for fracture of the acetabulum and the like are established under the guidance of the C arm, aiming at the situation that the channel is established by simply using the guide pin without passing through a working sleeve, the guide pin crosses deep soft tissues to reach the bone surface, and the minimally invasive lower needle feeding point selection and adjustment needle feeding point often have the problem that certain deviation is difficult to accurately position.
Therefore, the utility model aims at designing a working sleeve for establishing screw channels in minimally invasive screw fixation operations of pelvis and acetabulum, which is specially used for positioning and fine adjustment of needle insertion points through various screw channels.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve above-mentioned prior art's shortcoming, provide a convenient to use's fine setting work sleeve that ring pelvis, acetabular bone wicresoft screw passageway were established, its preparation and operation are easy and simple to handle, and the sleeve is through disinfection reuse, practices thrift the cost. Improve handheld stability through the head recess and be convenient for operation, through each little inlet hole, the hollow screw guide pin penetrates so that location and the fine setting of needle inlet point to improve the safe establishment of minimal access surgery screw passageway, reduce the damage and effectively improve the accurate safe operation of wicresoft and put nail quality, convenient and fast simultaneously.
The utility model provides a technical scheme that its technical problem adopted: the fine-tuning working sleeve established by the ring pelvis and acetabulum minimally-invasive screw channel comprises a sleeve body, wherein the sleeve body comprises a head part, a channel part and a tip part, and the head part, the channel part and the tip part are integrally formed; the upper end of the head part is provided with an opening which takes the center of the head part as the center, three inlet holes which are arranged in the head part and are arranged in parallel at intervals are arranged in the opening, and the circle center of the inlet hole arranged in the middle is the same as the center of the opening; a channel hole which penetrates through the channel part and is matched with the inlet hole is formed in the channel part; the tip part is internally provided with an outlet hole which penetrates through the tip part and is matched with the channel hole, and the outlet hole arranged in the middle is provided with a notch which extends into the tip part along the bottom surface of the tip part. Therefore, through the small inlet holes which are arranged in parallel and keep a certain distance, the hollow screw guide pin in the operation can be conveniently penetrated for positioning and the fine adjustment of the needle inlet point is carried out, so that the safe establishment of a screw channel in the minimally invasive operation is improved, and the nail placing quality of the minimally invasive precise safe operation is effectively improved; the sleeve has the advantages of simplified manufacturing process, reduced manufacturing cost, miniature and small appearance, simple and convenient operation, repeated utilization of the sleeve body through disinfection, and cost saving.
Further perfection, 5-8 grooves are arranged on the edge of the head. Thus, the arrangement can increase the gripping hand feeling and the friction force of the operator and prevent the operator from falling off the hand.
Further perfection, the lower end of the head part is in a conical shape and is transited to the end of the channel part. Thus, such an arrangement allows the sleeve to be inserted deeper into the body while also providing a deeper treatment depth for the lead.
Further perfection, the opening is arranged in a circular shape, and the diameter of the opening is consistent with the width of the channel part. Like this for advance the position matching of hole and passageway hole, also make the area of holding between the fingers of head big simultaneously, the operator holds between the fingers comfortablely, thereby improves treatment efficiency.
Further perfection, the channel part is in a wide and flat shape, the upper end face and the lower end face of the channel part are rectangular planes, and the left side face and the right side face of the channel part are arc smooth faces. Therefore, the sleeve is favorably placed on the bone surface of the deep part from the incision and enters the soft tissue to gradually push away and expand the minimally invasive small incision, the soft tissue injury is small, and the pain of a patient after the operation is reduced.
Further perfection, the two side surfaces of the tip part are conical. Thus, the contact surface of the sleeve and the pelvic bone surface is increased, and the sliding resistance is improved.
The utility model discloses profitable effect is: the utility model improves the stability of holding the working sleeve by the operator in the operation through the design of the head groove, and is convenient for the operation; the two side surfaces of the tip part are conical, so that the contact surface between the sleeve and the pelvis bone surface is increased, and the sliding resistance is improved; the wide flat rectangular channel part is beneficial to the sleeve to be placed into the deep bone surface from the incision, and the sleeve has the function of gradually pushing away and expanding a minimally invasive small incision when entering soft tissues, so that the soft tissues are less damaged; through the small inlet holes which are arranged in parallel and keep a certain distance, the hollow screw guide pin in the operation can be conveniently penetrated for positioning, and the fine adjustment of the needle inlet point is carried out, so that the safe establishment of a screw channel in the minimally invasive operation is improved, and the nail placing quality of the minimally invasive precise safe operation is effectively improved; the surgical sleeve has the advantages of simplified manufacturing process, reduced manufacturing cost, miniature and small appearance, smooth and attractive curve, simple and convenient operation, repeated utilization of the working sleeve through disinfection and cost saving.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the present invention;
fig. 3 is a schematic view of the present invention;
fig. 4 is a schematic view of the present invention;
fig. 5 is a schematic diagram of the present invention.
Description of reference numerals: the sleeve comprises a sleeve body 1, a head 2, a channel part 3, a tip part 4, an opening 5, an inlet hole 6, a channel hole 7, an outlet hole 8, a notch 9 and a groove 10.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
with reference to the accompanying drawings: the fine-adjustment working sleeve established by the ring pelvis and acetabulum minimally-invasive screw channel comprises a sleeve body 1, wherein the sleeve body 1 comprises a head part 2, a channel part 3 and a tip part 4, and the head part 2, the channel part 3 and the tip part 4 are integrally formed; an opening 5 taking the center of the head part 2 as the center is formed at the upper end of the head part 2, three inlet holes 6 which are formed in the head part 2 and are arranged in parallel at intervals are formed in the opening 5, and the circle center of the inlet hole 6 arranged in the middle is the same as the center of the opening 5; a channel hole 7 which penetrates through the channel part 3 and is matched with the inlet hole 6 is formed in the channel part 3; an outlet hole 8 which penetrates through the tip part 4 and is matched with the channel hole 7 is arranged in the tip part 4, wherein a notch 9 which extends into the tip part 4 along the bottom surface of the tip part 4 is arranged at the position of the outlet hole 8 arranged in the middle.
The edge of the head 2 is provided with 5-8 grooves 10.
The lower end of the head part 2 is in a conical transition to the end of the channel part.
The opening 5 is arranged in a circular shape, and the diameter of the opening 5 is consistent with the width of the channel part 3.
The channel part 3 is in a wide and flat shape, the upper end surface and the lower end surface of the channel part 3 are rectangular planes, and the left side surface and the right side surface of the channel part 3 are arc smooth surfaces.
Both side surfaces of the tip portion 4 are conical.
Example 1:
the method comprises the steps of supine position, sacrum part padding, C-arm transmission confirmation that no inclination occurs in the middle of the sacrum of the pelvis through transmission, disinfection and towel laying, perspective of the pelvis by a C-shaped arm X-ray machine through a lateral piece at the center of the sacrum 1-2, confirmation of a sacrum 1 safety channel interface, an upper ICD line, a sacrum slope line, a front sacrum front edge line, a lower posterior sacral nerve root line, a rear sacral canal front edge line, confirmation of a sacrum 1 sacrum hole, positioning of a guide pin at a needle feeding point, incision of a small incision, placement of a working sleeve, placement of a guide pin on the bone surface into cortex, adjustment of the needle feeding point through a feeding hole 6 of a sleeve body 1 according to needs, confirmation of satisfaction of the needle feeding point, gradual entry of the guide pin for a certain length, guarantee of the guide pin in a safety area, pelvis correction, further confirmation of the guide pin in the safety channel through the entrance and exit piece. Through sleeve body 1 location and adjustment needle point, effectively reduce intraoperative X line transmission number of times, safe quick accurate screw passageway of establishing.
Example 2:
the technical points for establishing the sacroiliac screw channel of the sacrum 2 sacroiliac joint are as follows: the method comprises the steps of supine position, sacrum part padding, C-arm transmission confirmation that no inclination occurs in the middle of the sacrum of the pelvis through transmission, disinfection and towel laying, perspective of a C-shaped arm X-ray machine on a side piece of the center of the pelvis by using a sacrum 2 position, confirmation of a sacrum 2 safety channel interface, clearance of an upper sacrum 1 hole, a front sacrum front edge line, a lower sacral nerve root line at the lower back, a rear sacral canal front edge line, confirmation of a sacrum 2 sacrum hole, positioning of a guide pin at a needle feeding point, incision of a small incision, placement of a sleeve body 1, placement of a guide pin on the bone surface into cortex, adjustment of the needle feeding point through a fine adjustment hole 6 of the sleeve body 1 as required, confirmation of satisfaction of the needle feeding point, gradual entry of the guide pin for a certain length, guarantee of the guide pin in a safety area, pelvis correction, further confirmation of the guide pin in the safety channel through the entrance and exit piece. Through sleeve body 1 location and adjustment needle point, effectively reduce intraoperative X line transmission number of times, safe quick accurate screw passageway of establishing.
Example 3:
the technical points of establishing the pelvis LC-II screw channel are as follows: in the supine position, after the towel is spread in a sterilized mode, a C-shaped arm X-ray machine looks through the affected anterior inferior iliac spine as the center, a safety channel is confirmed at the outlet of a pelvis and the inclined position of an improved obturator foramen, a triangular tear drop position image is formed at the junction of the anterior iliac spine and the posterior iliac spine, a small incision is cut, the cutaneous nerve is protected in a temporary separation mode, the sleeve body 1 is placed, a guide pin is placed into the bone surface and enters the anterior lateral cortex of the anterior superior iliac spine, the needle feeding point is adjusted through a fine adjustment hole 6 of the sleeve body 1 as required, the satisfaction of the needle feeding point is confirmed, the guide pin is ensured to be located in the safety zone after the guide pin gradually enters a certain length, the guide pin is confirmed to be located in the safety channel at the inclined position of the improved. The sleeve body 1 is used for positioning and adjusting the needle feeding point, the X-ray transmission times in the operation are effectively reduced, and a screw channel is safely, quickly and accurately established
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (6)
1. The utility model provides a fine setting work sleeve that ring pelvis, acetabular bone wicresoft screw passageway were established, includes sleeve body (1), characterized by: the sleeve body (1) comprises a head part (2), a channel part (3) and a tip part (4), and the head part (2), the channel part (3) and the tip part (4) are integrally formed; an opening (5) taking the center of the head (2) as the center is formed in the upper end of the head (2), three inlet holes (6) which are formed in the head (2) and are arranged in parallel at intervals are formed in the opening (5), and the circle center of the inlet hole (6) arranged in the middle is the same as the center of the opening (5); a channel hole (7) which penetrates through the channel part (3) and is matched with the inlet hole (6) is formed in the channel part (3); an outlet hole (8) which penetrates through the tip part (4) and is matched with the channel hole (7) is formed in the tip part (4), and a notch (9) which extends into the tip part (4) along the bottom surface of the tip part (4) is formed in the position of the outlet hole (8) arranged in the middle.
2. The fine tuning working sleeve for creating around-the-pelvis and acetabulum minimally invasive screw channel according to claim 1, wherein: the edge of the head part (2) is provided with 5-8 grooves (10).
3. The fine tuning working sleeve for creating around-the-pelvis and acetabulum minimally invasive screw channel according to claim 1, wherein: the lower end of the head part (2) is in a conical transition to the end of the channel part.
4. The fine tuning working sleeve for creating around-the-pelvis and acetabulum minimally invasive screw channel according to claim 1, wherein: the opening (5) is arranged in a circular shape, and the diameter of the opening (5) is consistent with the width of the channel part (3).
5. The fine tuning working sleeve for creating around-the-pelvis and acetabulum minimally invasive screw channel according to claim 1, wherein: the channel part (3) is in a wide and flat shape, the upper end face and the lower end face of the channel part (3) are rectangular planes, and the left side face and the right side face of the channel part (3) are arc smooth faces.
6. The fine tuning working sleeve for creating around-the-pelvis and acetabulum minimally invasive screw channel according to claim 1, wherein: the two side surfaces of the tip part (4) are conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920580817.9U CN209966539U (en) | 2019-04-25 | 2019-04-25 | Fine adjustment working sleeve for establishing minimally invasive screw channel around pelvis and acetabulum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920580817.9U CN209966539U (en) | 2019-04-25 | 2019-04-25 | Fine adjustment working sleeve for establishing minimally invasive screw channel around pelvis and acetabulum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209966539U true CN209966539U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920580817.9U Expired - Fee Related CN209966539U (en) | 2019-04-25 | 2019-04-25 | Fine adjustment working sleeve for establishing minimally invasive screw channel around pelvis and acetabulum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209966539U (en) |
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2019
- 2019-04-25 CN CN201920580817.9U patent/CN209966539U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 Termination date: 20210425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |