CN2868216Y - Transdermic pyramidal opening-resetting medicine pelletron implantation device - Google Patents
Transdermic pyramidal opening-resetting medicine pelletron implantation device Download PDFInfo
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- CN2868216Y CN2868216Y CN 200520139557 CN200520139557U CN2868216Y CN 2868216 Y CN2868216 Y CN 2868216Y CN 200520139557 CN200520139557 CN 200520139557 CN 200520139557 U CN200520139557 U CN 200520139557U CN 2868216 Y CN2868216 Y CN 2868216Y
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- box
- pelletron
- guide
- driving shaft
- vertebral body
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Abstract
The utility model discloses a drug-loading bead chain implant for percutaneous kyphoplasty. It comprises a drive cassette, a rotary handle, a drive shaft and a cannula. Said drive cassette is provided with a guide channel in its interior. Said rotary handle consists of a handle and a guide rod, in which the guide rod is arranged such that its one end is fitted inside the guide channel in rotatable connection with the inner wall of the guide channel. A drive pore channel is provided along the central shaft of guide rod to hold the drive shaft therein in screw connection mode. Said drive shaft is in slip connection with the drive cassette by a positioning mechanism. Said cannula has two ends useful as bead inlet and outlet respectively, and a connector is fitted in the bead inlet. With the aid of screw-thread structure, the drug-loading bead chain is inserted into the vertebral body to provide local sustained-release of drug for the treatment of vertebral tumor and nonspecific infection.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments that is used for the minimally invasive spine surgical operation, is specifically related to a kind of medicine pelletron of vertebral body distraction reduction that makes and implants Intrapyramidal device, is mainly used in compressibility vertebral fracture, the operation of senile collapse of vertebra.
Background technology
The osteoporotic vertebral compression fracture is a commonly encountered diseases, has a strong impact on human health, along with aged tendency of population, because of the sickness rate of the concurrent fragility fractures of osteoporosis is ascendant trend year by year.The U.S., because of the sickness rate of fragility fractures due to the primary osteoporosis just surpassed for 1,500,000 example/years, China, the senile osteoporosis disease sickness rate more than 60 years old is about 60%; The clinical practice of hormone therapy in addition, secondary osteoporosis also increase year by year, and the vertebral compression fracture that causes also is and significantly increases trend; And on the other hand, the increase of vehicle accident is significantly risen the sickness rate of young and middle-aged traumatic spinal fracture.In addition, because the prolongation of the average life span, the raising of malignant tumor patient cure rate makes the compression fracture of vertebral tumor secondary also very common.
The traditional therapy of osteoporotic vertebral compression fracture be lie up, analgesia, physical therapy, brace protection because movable the minimizing will cause further bone loss; And open operation also makes screw be difficult to fixedly be restricted because of patient's sclerotin is seriously loose.The eighties in 20th century, Charles Robert Richet Deramand and Galibert at first use vertebroplasty (Vertebroplasty, VP) the vertebral body bone destruction due to the treatment hemangioma, alleviated patient's long-term pain, but, this technology bone cement percolation ratio height, and vertebral height, kyphosis deformity do not had role of correcting.U.S. Mark Reiley in 1994 etc. have designed expandable balloon (Inflatable bone tamp, IBT) be the operating theater instruments of core, recover vertebral height, correct kyphosis deformity by balloon expandable, promptly protruding plasty behind the balloon expandable (Kyphoplasty, KP).Through clinical practice, this technology is reduction of patient pain rapidly, increases vertebral body rigidity and intensity; Simultaneously fractured vertebral body is resetted, recover vertebral height, correct kyphosis deformity, increase vital capacity, improve pulmonary function; And once balloon expandable, can make to produce a cavity in the vertebral body, the bone cement percolation ratio obviously reduces, and has obtained more satisfactory therapeutic effects.
Though, the safety and the vertebral body of the low bone cement seepage of the protruding plasty in back reset, the effect of rectification kyphosis deformity enjoys people's favor, but still exist shortcoming and defect: the expandable balloon bone tamper with the design of U.S. Kyphon company is an example, it is a kind of whippy expandable balloon, the not enough 3.5mm of its initial diameter, can pass through the working column of internal diameter 3.65mm smoothly, after entering vertebral body, elasticity is expanded after the pressurization expansion, osseous tissue in the extruding vertebral body, compress the terminal plate of vertebral body that subsides to reset, though sacculus can be expanded loose or destructive osseous tissue under certain pressure, compliance strong (easily with different its shapes that change of the compactness extent of vertebral body), but because the particularity of this balloon material and production technology, the power that struts is limited, easily break, and domestic patient's cost of use costliness, do not meet shortcomings such as China's national situation, while is for the traumatic spinal column compression fracture of youth, the treatment of bursting fracture has certain limitation, in addition, because the development of bone cement moulding material drug delivery technologies is immaturity still, can't be to tumor, nonspecific infections etc. are carried out topical therapeutic when vertebral body is strengthened.Therefore, design and produce the medicine carrying pelletron that can be implanted into for vertebral body, and for this reason in the supporting vertebral body of the implantation design of pelletron distraction reduction medicine carrying pelletron implanting device be the research worker target of making great efforts in the industry.
Summary of the invention
This utility model purpose provides a kind of spinal column compression fracture, bursting fracture of being applicable to, pathological changes such as vertebral tumor, specific infection, and it is controlled that vertebral body struts power, easy to use, and be suitable for the interior distraction reduction medicine pelletron implanting device of vertebral body that China's national situation is used.
For achieving the above object, the technical solution adopted in the utility model is: distraction reduction medicine pelletron implanting device in a kind of percutaneous vertebral body, it is mainly formed by driving box, rotary handle, driving shaft and sleeve pipe, offer guide channel in the described driving box, be provided with feeder connection and channel outlet corresponding to guide channel, the two ends that drive box; Described rotary handle comprises handle and guide rod two parts, and an end of described guide rod is located in the guide channel, constitutes with the guide channel inwall to be rotationally connected, and the other end extends to the outside that drives box and one-body molded with handle; Central shaft along guide rod offers a driving duct, and this duct one end is through to the end of handle, and the other end is communicated with described driving package path outlet, and described driving shaft is located at and is driven in the duct, constitutes the wire rod thread syndeton with the driving duct; Constitute the relation of being slidingly connected by a location structure between described driving shaft and the driving box; A described telescopic end is a bead inlet port, and the other end is a bead discharging port, and described bead inlet port place is provided with the connector that cooperates with the channel outlet that drives box, and telescopic internal diameter cooperates with the external diameter of driving shaft.
In the technique scheme, during use, irritate in the sleeve pipe medicine of resetting pelletron is arranged, that the shape of this pelletron can be is spherical, column, polyhedron etc., with making such as metals (medical stainless steel), synthetic material (have or nonelastic), is connected in series by the silk rope, by the wire rod thread structure, driving shaft is advanced, pelletron is sent into the vertebral body of compression fracture or tumor destruction, reach the purpose that distraction reduction, vertebral body are strengthened.When handle rotates and since driving shaft with drive box for being slidingly connected, driving shaft can not rotate, handle rotates a circle, guide rod promotes the driving shaft pitch of advancing, thus driving shaft enters in the sleeve pipe, the promotion pelletron enters vertebral body.
In the technique scheme, described driving shaft and the location structure that drives between the box are, the shaft section of described driving shaft is an oval type, also comprise a pair of T type guiding folder that drives the package path exit that is symmetricly set in, distance between the opposite face of described T type guiding folder cooperates with driving shaft, constitutes clamp position, its another side, be positioned at the T type montant end in the duct of channel outlet, its external diameter cooperates with the duct; Be positioned at the T type yardarm that drives the box guide channel, the internal diameter coupling of its external diameter and guide channel, the guide rod end of described rotary handle is butted on the outer face of T type yardarm, and the other end of yardarm is butted on and drives on the box medial wall.Driving shaft is under the position-limiting action of guiding folder, and driving shaft only seesaws, and not with the guide rod rotation, can avoid skidding between the two, guarantees that driving shaft pushes ahead.
Another kind of technical scheme is that described driving shaft and the location structure that drives between the box are that symmetry has gathering sill on the described driving shaft, is provided with in the duct of the channel exit of described driving box and the gathering sill fitting projection.
In the technique scheme, be provided with at least two group guide pads in the described driving box, the internal diameter of described guide pad cooperates with the external diameter of rotary handle guide rod, constitutes guide channel; Described rotary handle guide rod is provided with a spacing ring that outwards stretches, and this spacing ring is between the guide pad and driving box medial wall of near handle end.
In the technique scheme, have an observation port on the side of described driving box, be provided with one corresponding to this place, hole and advance scale.
In the technique scheme, the end face of described driving box is provided with an arc grip part to lower recess.
In the technique scheme, described telescopic bead discharging port is positioned on the side pipe wall of nearly sleeve pipe tail end.
This utility model operation principle is: turn rotary handle, because handle guide rod bottom is butted on the location structure, having limited it moves forward and backward, guide rod is rotationally connected with driving box formation, drive the duct and be positioned at, the driving shaft that is connected with driving duct threaded screw rod, be subjected to the restriction of location structure, it can't be rotated with guide rod, can only progressively advance along screw thread, so driving shaft just can push the pelletron of having irritated in the sleeve pipe in the vertebral body, it is by the extruding between ball and the ball and propulsive that the pelletron in the place ahead advances, after entering vertebral body since in the vertebral body bone destruction with loose, beadlet changes the direction of extrusion, and the extruding of osseous tissue expansion towards periphery, along with propelling, pelletron coils in vertebral body and is irregular bulk, finally can play the distraction reduction effect to terminal plate of vertebral body, after expansion is finished, withdraw from sleeve pipe, the medicine pelletron is kept somewhere in vertebral body, strengthen, fixing vertebral body, to the vertebral body medicament slow release, reach and promptly strengthen vertebral body, again the purpose of topical medications simultaneously.
Because the technique scheme utilization, this utility model compared with prior art has following advantage:
1. this utility model utilizes the wire rod thread structure, the pelletron that is stored in the sleeve pipe is advanced in the vertebral body of compression fracture, tumor destruction or senile collapse of vertebra, vertebral body in damaged condition is strutted, it is resetted, keep somewhere simultaneously that Intrapyramidal medicine pelletron is promptly strengthened, fixing vertebral body, topical remedy's slow release improves kyphosis deformity, recovery spinal column sequence thereby reach again, and the purpose of long-term medicine topical therapeutic.
2. this utility model replaces sacculus in the expandable balloon bone tamper with pelletron, because pelletron is connected in series by the silk rope with single beadlet, after being pushed into vertebral body, distraction reduction pathological changes vertebral body, and keep somewhere in vertebral body long-term medicament slow release, topical therapeutic, pelletron is easy to produce simultaneously, cost is lower, thereby has reduced surgery cost, is suitable for domestic patient's use.
Description of drawings
Accompanying drawing 1 is the structural representation (sleeve pipe does not draw) of this utility model embodiment one;
Accompanying drawing 2 is for partly cuing open structural representation under the sleeve pipe duty of this utility model embodiment one;
Accompanying drawing 3 is the front view that drives box among Fig. 1;
Accompanying drawing 4 is the enlarged drawing of location structure among Fig. 1;
Accompanying drawing 5 is looked enlarged drawing for the left side of Fig. 4;
Accompanying drawing 6 is looked enlarged drawing for the left side of driving shaft among Fig. 1.
Wherein: [1], driving box; [2], driving shaft; [3], sleeve pipe; [4], guide channel; [5], feeder connection; [6], channel outlet; [7], hands handle; [8], guide rod; [10], bead inlet port; [11], bead discharging port; [12], connector; [13], guiding folder; [15], guide pad; [16], spacing ring; [17], observation port; [18], advance scale; [19], grip part.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment one: referring to accompanying drawing 1 to shown in Figure 6, distraction reduction medicine pelletron implanting device in a kind of percutaneous vertebral body, it is mainly formed by driving box 1, rotary handle, driving shaft 2 and sleeve pipe 3, offer guide channel 4 in the described driving box 1, be provided with feeder connection 5 and channel outlet 6 corresponding to guide channel 4, the two ends that drive box 1; Described rotary handle comprises handle 7 and guide rod 8 two parts, and an end of described guide rod 8 is located in the guide channel 4, constitutes with guide channel 4 inwalls to be rotationally connected, and the other end and handle 7 are one-body molded, and extends to the outside that drives box 1; Central shaft along guide rod 8 offers a driving duct, this duct one end is through to the end of handle 7, the other end is communicated with described driving box 1 channel outlet 6, described driving shaft 2 is located at and is driven in the duct, this duct inwall is provided with female thread, and driving shaft 2 is provided with the external screw thread that is mated, and both constitute the wire rod thread syndeton; Constitute the relation of being slidingly connected by a location structure between described driving shaft 2 and the driving box 1; One end of described sleeve pipe 3 is a bead inlet port 10, and the other end is a bead discharging port 11, and described bead inlet port 10 places are provided with the connector 12 that cooperates with the channel outlet 6 that drives box 1, and the internal diameter of sleeve pipe 3 cooperates with the external diameter of driving shaft 2.
In the present embodiment, described driving shaft 2 and the location structure that drives between the box 1 are, the shaft section of described driving shaft 2 is an oval type, also comprise a pair of T type guiding folder 13 that drives box 1 channel outlet 6 places that is symmetricly set in, distance between the opposite face of described T type guiding folder 13 cooperates with driving shaft 2, constitutes clamp position, its another side, be positioned at the T type montant end in the duct of channel outlet 6, its external diameter cooperates with the duct; Be positioned at the T type yardarm that drives box 1 guide channel 4, the internal diameter coupling of its external diameter and guide channel 4, guide rod 8 ends of described rotary handle are butted on the outer face of T type yardarm, and the other end of yardarm is butted on and drives on box 1 medial wall.Be provided with 3 groups of guide pads 15 in the described driving box 1, the internal diameter of described guide pad 15 cooperates with the external diameter of rotary handle guide rod 8, constitutes guide channel 4; In 3 groups of guide pads 15, the first guide pad group is positioned at the driving package path and exports 6 places, the second guide pad group is positioned at the middle part of guide channel 4, the 3rd guide pad group is positioned at right-hand member place, nearly driving box 1 medial wall, described rotary handle guide rod 8 is provided with a spacing ring 16 that outwards stretches, and this spacing ring 16 is between the 3rd guide pad group and driving box 1 medial wall; Have an observation port 17 on one side of described driving box 1, be provided with one corresponding to this place, hole and advance scale 18, drive box 1 end face and be provided with an arc grip part 19 to lower recess; The bead discharging port 11 of described sleeve pipe 3 is positioned on the side pipe wall of nearly sleeve pipe 3 tail ends.
Embodiment two: distraction reduction medicine pelletron implanting device in a kind of percutaneous vertebral body, it is mainly formed by driving box, rotary handle, driving shaft and sleeve pipe, offer guide channel in the described driving box, be provided with feeder connection and channel outlet corresponding to guide channel, the two ends that drive box; Described rotary handle comprises handle and guide rod two parts, and an end of described guide rod is located in the guide channel, constitutes with the guide channel inwall to be slidingly connected, and the other end and handle are one-body molded, and extends to the outside that drives box; Central shaft along guide rod offers a driving duct, this duct one end is through to the end of handle, the other end is communicated with described driving package path outlet, described driving shaft is located at and is driven in the duct, this duct inwall is provided with female thread, and driving shaft is provided with the external screw thread that is mated, and both constitute the wire rod thread syndeton; A described telescopic end is a bead inlet port, and the other end is a bead discharging port, and described bead inlet port place is provided with the connector that cooperates with the channel outlet that drives box, and telescopic internal diameter cooperates with the external diameter of driving shaft; Be provided with a location structure between described driving shaft and the driving box.
In the present embodiment, described driving shaft and the location structure that drives between the box are that symmetry has gathering sill on the described driving shaft, is provided with in the duct of the channel exit of described driving box and the gathering sill fitting projection.Be provided with 2 groups of guide pads in the described driving box, the internal diameter of described guide pad cooperates with the external diameter of rotary handle guide rod, constitutes guide channel; In 2 groups of guide pads, the first guide pad group is positioned at and drives the package path exit, the second guide pad group is positioned at right-hand member place, nearly driving box medial wall, and described rotary handle guide rod is provided with a spacing ring that outwards stretches, and this spacing ring is between the second guide pad group and driving box medial wall.
Claims (7)
1. distraction reduction medicine pelletron implanting device in the percutaneous vertebral body, it is characterized in that: it is mainly formed by driving box [1], rotary handle, driving shaft [2] and sleeve pipe [3], offer guide channel [4] in the described driving box [1], be provided with feeder connection [5] and channel outlet [6] corresponding to guide channel [4], the two ends that drive box [1]; Described rotary handle comprises handle [7] and guide rod [8] two parts, and an end of described guide rod [8] is located in the guide channel [4], constitutes with guide channel [4] inwall to be rotationally connected, and the other end extends to the outside that drives box [1] and one-body molded with handle [7]; Central shaft along guide rod [8] offers a driving duct, this duct one end is through to the end of handle [7], the other end is communicated with described driving box [1] channel outlet [6], and described driving shaft [2] is located at and is driven in the duct, constitutes the wire rod thread syndeton with the driving duct; Constitute the relation of being slidingly connected by a location structure between described driving shaft [2] and the driving box [1]; One end of described sleeve pipe [3] is bead inlet port [10], and the other end is bead discharging port [11], and described bead inlet port [10] locates to be provided with the connector [12] that cooperates with the channel outlet that drives box [1] [6], and the internal diameter of sleeve pipe [3] cooperates with the external diameter of driving shaft [2].
2. distraction reduction medicine pelletron implanting device in the percutaneous vertebral body according to claim 1, it is characterized in that: described driving shaft [2] and the location structure that drives between the box [1] are, the shaft section of described driving shaft [2] is an oval type, comprise that also a pair of being symmetricly set in drives the T type guiding folder [13] that box [1] channel outlet [6] is located, distance between the opposite face of described T type guiding folder [13] cooperates with driving shaft, its another side, be positioned at the T type montant end in the duct of channel outlet [6], its external diameter cooperates with the duct; Be positioned at the T type yardarm that drives box [1] guide channel [4], the internal diameter coupling of its external diameter and guide channel [4], the guide rod of described rotary handle [8] end is butted on the outer face of T type yardarm, and the other end of yardarm is butted on and drives on box [1] medial wall.
3. distraction reduction medicine pelletron implanting device in the percutaneous vertebral body according to claim 1, it is characterized in that: described driving shaft [2] and the location structure that drives between the box [1] are, described driving shaft [2] is gone up symmetry and is had gathering sill, is provided with and the gathering sill fitting projection in the duct that the channel outlet [6] of described driving box [1] is located.
4. distraction reduction medicine pelletron implanting device in the percutaneous vertebral body according to claim 1, it is characterized in that: be provided with at least two group guide pads [15] in the described driving box [1], the internal diameter of described guide pad [15] cooperates with the external diameter of rotary handle guide rod [8], constitutes guide channel [4]; Described rotary handle guide rod [8] is provided with a spacing ring [16] that outwards stretches, and this spacing ring [16] is positioned at the guide pad [15] of nearly handle [7] end and drives between box [1] medial wall.
5. distraction reduction medicine pelletron implanting device in the percutaneous vertebral body according to claim 1 is characterized in that: have an observation port [17] on the side of described driving box [1], be provided with one corresponding to this place, hole and advance scale [18].
6. distraction reduction medicine pelletron implanting device in the percutaneous vertebral body according to claim 1, it is characterized in that: the end face of described driving box [1] is provided with an arc grip part [19] to lower recess.
7. distraction reduction medicine pelletron implanting device in the percutaneous vertebral body according to claim 1, it is characterized in that: the bead discharging port [11] of described sleeve pipe [3] is positioned on the side pipe wall of nearly sleeve pipe [3] tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139557 CN2868216Y (en) | 2005-12-08 | 2005-12-08 | Transdermic pyramidal opening-resetting medicine pelletron implantation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139557 CN2868216Y (en) | 2005-12-08 | 2005-12-08 | Transdermic pyramidal opening-resetting medicine pelletron implantation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2868216Y true CN2868216Y (en) | 2007-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520139557 Expired - Fee Related CN2868216Y (en) | 2005-12-08 | 2005-12-08 | Transdermic pyramidal opening-resetting medicine pelletron implantation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN2868216Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109195658A (en) * | 2016-03-28 | 2019-01-11 | 圆尾明弘 | Biocide is sustained utensil |
-
2005
- 2005-12-08 CN CN 200520139557 patent/CN2868216Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109195658A (en) * | 2016-03-28 | 2019-01-11 | 圆尾明弘 | Biocide is sustained utensil |
| CN109195658B (en) * | 2016-03-28 | 2021-06-22 | 圆尾明弘 | Slow-releasing device for antibiotic agent |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |