CN203017582U - Implantable medical device and system with anti-bolt screw-out structure - Google Patents
Implantable medical device and system with anti-bolt screw-out structure Download PDFInfo
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- CN203017582U CN203017582U CN 201220734645 CN201220734645U CN203017582U CN 203017582 U CN203017582 U CN 203017582U CN 201220734645 CN201220734645 CN 201220734645 CN 201220734645 U CN201220734645 U CN 201220734645U CN 203017582 U CN203017582 U CN 203017582U
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- screw
- water seal
- medical device
- seal parts
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Abstract
The utility model discloses an implantable medical device with an anti-bolt screw-out structure. The device comprises a shell, a battery and a circuit board both arranged in the shell, and a connecting head hermetically connected with the shell. The connecting head comprises a plurality of connecting blocks, a wireless communication antenna and a sealing filler. The connecting blocks are radially provided with screw holes communicated with connecting holes. The screw holes are internally provided with bolts for pressing conductive rings on line traps. The filler covered by screw teeth is filled on the screw thread at one end of the bolt, close to the water seal part. When the doctor reversely operates, the bolts only apply downward ejecting force to the water seal part without upward spiral feeding force. The joint-cutting length in the water seal part is smaller than the outer diameter of the bolts, so that even if the bolts are completely screwed out of the connecting blocks, the bolts do not pass through the joint cut in the water seal part, thereby reducing the probability that the water seal part is damaged in function caused by mis-operation of the doctor. The utility model further discloses a medical system comprising the implantable medical device.
Description
Technical field
This utility model relates to a kind of Implanted medical system, specifically, relates to a kind of have anti-screw back-out implantable medical device and the Implanted medical system of structure.
Background technology
Implanted medical system generally includes implantable neural electrical stimulator and (comprises brain deep brain stimulation DBS, the implanted cortex stimulates CNS, implanted spinal cord stimulation trial SCS, implanted sacral nerves electricity irritation SNS, implanted vagus nerve electricity irritation VNS etc.), implantable cardiac electric stimulation (being commonly called as cardiac pacemaker), implanted drug infusion system (IDDS) etc.
Take implantable neural electrical stimulator as example, mainly comprise the pulse generator, electrode and the external controller that implant.Wherein, pulse generator is connected with electrode by extension wire, thereby the burst transmissions that pulse generator produces is arrived electrode, and the pulse signal that pulse generator produces transfers to specific neuronal target by electrode and carries out electricity irritation, thereby makes function of human body return to the state of normal operation.External controller comprises doctor's program controller, patient controller.
Wherein, patient controller is to be the device of being used for of being equipped with of patient according to the output parameter of pulse generator in own situation gauge tap or control agent, and patient usually only can adjusting voluntarily in the range of accommodation that the doctor arranges.Doctor's program controller is that the doctor is used for device according to the output parameter of pulse generator in patients condition monitoring control agent, and common doctor's program controller can be used to control a plurality of pulse generators.Patient controller and doctor's program controller can communicate by wireless communications mode, magnetic coil or other communication modes and pulse generator.
In embedded nerve stimulator or cardiac pacemaker on the existing market, one of connected mode of embedded nerve stimulator or cardiac pacemaker and extension wire is fixed for holding screw.The water seal parts are arranged at the top of holding screw, and in assembling process, the interior hexagonal that torque spanner need be inserted on holding screw by the joint-cutting of water seal parts tightens or loosens holding screw.Therefore when the holding screw derotation, if doctor's misoperation, the too much reverse rotation number of turns can make screw screw out from the joint-cutting of water seal parts.Because the water seal parts are usually softer, in the advancing of screw, the inner surface of the joint-cutting of water seal parts can be damaged, and causes the sealing function of water seal parts to be lost, and infiltration such as body fluid make the power consumption increase of implantable medical device.The method that addresses this problem at present is exactly by the training education to operator doctor, the number of turns of reduce with control reverse rotation.Yet the faulty operation probability that this anthropic factor causes is still larger.
The utility model content
For the deficiencies in the prior art, the technical problems to be solved in the utility model is to provide a kind of anti-screw implantable medical device of structure of back-outing that has, can prevent the doctor when the derotation screw operates, too much the derotation of number of turns operation causes the screw breakage water seal therefrom to screw out.
according to technical scheme provided by the utility model, a kind of have an anti-screw implantable medical device of structure of back-outing, comprise housing, be arranged on battery and circuit board in housing, the connection head that is connected with described housing seal, described connection head comprises a plurality of contiguous blocks that are electrically connected to described circuit board of axially-aligned, radio antenna and sealing filler, axially offering for the connecting hole that inserts line trap of described contiguous block, described contiguous block radially offers the screw that communicates with described connecting hole, be provided with the screw for conducting ring on the described line trap of crimping in described screw, be provided with the water seal parts that have joint-cutting on described connecting hole, described joint-cutting is used for making torque spanner tighten screw by the water seal parts, be filled with the implant that covers thread on screw thread on one end of the nearly water seal parts of described screw.
Preferably, described implant is epoxy resin.
Preferably, the slot length of described water seal parts is less than the thread external diameter of described screw.
Preferably, the screw terminal oral area of the screw of described contiguous block has one section counterbore, and the diameter of described counterbore is greater than the external diameter of screw.
Preferably, described water seal parts are that silica gel material is made, and offer cannelure on the excircle of described water seal parts, are provided with becket in described cannelure, and the internal diameter of described becket is less than the external diameter of described cannelure.
This utility model also provides a kind of Implanted medical system, comprise doctor's program control instrument, patient controller, implant electrode, also comprise the anti-screw implantable medical device of structure of back-outing that has as above, the line trap in described implant electrode and connecting hole is electrically connected.
Preferably, described implantable medical device is a kind of in embedded nerve stimulator, Implanted cardiac pacemaker or implanted medication carrier.
this utility model also provides a kind of anti-screw implantable medical device of structure of back-outing that has, comprise housing, be arranged on battery and circuit board in housing, the connection head that is connected with described housing seal, described connection head comprises a plurality of contiguous blocks that are electrically connected to described circuit board of axially-aligned, radio antenna and sealing filler, axially offering for the connecting hole that inserts line trap of described contiguous block, described contiguous block radially offers the screw that communicates with described connecting hole, be provided with the screw for conducting ring on the described line trap of crimping in described screw, be provided with the water seal parts that have joint-cutting on described connecting hole, described joint-cutting is used for making torque spanner tighten screw by the water seal parts, on one end of the nearly water seal parts of described screw without thread.
Preferably, the slot length of described water seal parts is less than the thread external diameter of described screw.
Preferably, the screw terminal oral area of the screw of described contiguous block has one section counterbore, and the diameter of described counterbore is greater than the external diameter of screw.
Preferably, described water seal parts are that silica gel material is made, and offer cannelure on the external peripheral surface of described water seal parts, are provided with becket in described cannelure, and the internal diameter of described becket is less than the external diameter of described cannelure.
compared with prior art the utility model has the advantages that: owing to being filled with the implant that covers thread on the screw thread on an end of the nearly water seal parts of this utility model screw, when the doctor operates in derotation, due to the top ends of screw without thread, screw only has downward ejecting force to the water seal parts, and there is no upwards screwfeed power, and the slot length of establishing in the water seal parts is less than the external diameter of screw, even therefore screw screws out contiguous block fully, screw can not pass the joint-cutting in the water seal parts yet, and only cause the water seal parts that stretcher strain is arranged, when screwing in again, it can restore to the original state again.Reduced because doctor's maloperation causes the water seal component function destroyed, the doctor does not need special training, even operation also can not cause the back-out of screw arbitrarily.
Description of drawings
Accompanying drawing 1 is the schematic diagram of Implanted medical system;
Accompanying drawing 2 is the schematic diagram of implantable medical device when using torque spanner to tighten screw;
Accompanying drawing 3 is the schematic top plan view of the connection head of implantable medical device;
Accompanying drawing 4 is A-A direction cross-sectional schematic in accompanying drawing 3;
Accompanying drawing 5 is the cross-sectional schematic of implantable medical device when using torque spanner derotation screw;
Accompanying drawing 6 is B district enlarged diagram in accompanying drawing 5;
Accompanying drawing 7 is for connecting the bolt structure schematic diagram of head;
Accompanying drawing 8 is the bolt structure schematic diagram of another embodiment;
Wherein:
1, embedded nerve stimulator; 11, housing; 12, connect head; 121, contiguous block; 122, sealing filler; 123, connecting hole; 124, screw; 125, screw; 126, joint-cutting; 127, water seal parts; 128, implant; 129, cannelure; 130, becket; 131, counterbore; 2, torque spanner; 3, doctor's program control instrument; 4, patient controller; 5, implant electrode.
The specific embodiment
Below in conjunction with accompanying drawing, this utility model is described in further detail:
As accompanying drawing 2 to shown in Figure 7, take the implantable nerve stimulating system as example, a kind of have an anti-screw embedded nerve stimulator 1 of structure of back-outing, and comprises housing 11, is arranged on battery in housing 11 and circuit board (not shown), is connected head 12 with described housing 11 is tightly connected.Connect a plurality of contiguous blocks 121 that are electrically connected to circuit board, radio antenna (not shown) and sealing filler 122 that head 12 comprises axially-aligned, axially offering for the connecting hole 123 that inserts line trap of contiguous block 121, contiguous block 121 radially offers the screw 124 that communicates with connecting hole 123.
In present embodiment, the extension wire plug of implantable neural electrical stimulation device comprises two parallel cylinder intercalation parts, have the connecting ring that place at 4 intervals on each intercalation part, two intercalation parts are inserted in respectively in two connecting holes that be arranged in parallel 123 that connect in head 12.When described extension wire was inserted into the installation site in connecting hole, the connecting ring of extension wire was aligned in other embodiment, and the extension wire plug also can be provided with one, two, six, eight or more connecting ring as required.
Be provided with the screw 125 for conducting ring on the crimping lead wire plug in screw 124, be provided with the water seal parts 127 that have joint-cutting 126 on connecting hole 123, joint-cutting 126 is used for making torque spanner 2 tighten screw 125 by water seal parts 127, is filled with the implant 128 that covers thread on the screw thread on an end of the nearly water seal parts 127 of screw 125.Implant 128 in present embodiment is epoxy resin, can be also other sealed filling materials.The slot length of water seal parts 127 is less than the thread external diameter of screw 125, and when preventing doctor's derotation operation, screw 125 upwards ejects to the water seal parts.
Be filled with the implant that covers thread on screw thread on one end of the nearly water seal parts of this utility model screw, when the doctor operates in derotation, due to the top ends of screw without thread, screw only has downward ejecting force to the water seal parts, and there is no upwards screwfeed power, and the slot length of establishing in the water seal parts is less than the external diameter of screw, even therefore screw screws out contiguous block fully, screw can not pass the joint-cutting in the water seal parts yet, and only cause the water seal parts that stretcher strain is arranged, when screwing in again, it can restore to the original state again.Reduced because doctor's maloperation causes the water seal component function destroyed, the doctor does not need special training, even operation also can not cause the back-out of screw arbitrarily.
As shown in Figure 6, the screw terminal oral area of the screw 124 of contiguous block 121 has one section counterbore 131, and the diameter of counterbore 131 is greater than the external diameter of screw 125.When doctor's derotation operated, number of times was more even maloperation makes derotation, because port part makes screw idle running without thread, can not produce centripetal force upwards to screw, thereby prevented screw threads from going out the water seal parts and drop.And when screw was tightened in doctor's dextrorotation, this counterbore 131 can not make the threads in screw 124 may wear to the implant of screw 125 ends in feeding.
In present embodiment, water seal parts 127 are made for silica gel material, offer cannelure 129 on the excircle of water seal parts 127, are provided with becket 130 in cannelure 129, and the internal diameter of becket 130 is interference fit less than the external diameter of cannelure 130.Pass the joint-cutting 126 rotary screws operations at water seal parts 127 centers completes when torque spanner 2, after extracting in joint-cutting 126, because thereby interference fit becket 130 will push to the silica gel that is positioned at becket 130 sealing joint-cutting 126, make implantable medical device have good water sealing property, extend its service life.
As shown in Figure 1, the invention also discloses a kind of Implanted medical system, comprise doctor's program control instrument 3, patient controller 4, implant electrode 5, also comprise the above-mentioned anti-screw implantable medical device of structure of back-outing that has, line trap in implant electrode 5 and connecting hole 123 is electrically connected, be filled with the implant 128 that covers thread on screw thread on one end of the nearly water seal parts 127 of the screw 125 of implantable medical device, prevent that screw from destroying and screwing out the water seal parts and dropping when derotation.In other embodiments, the top ends of screw 125 can also be not offer thread or the thread that will offer grinds off and becomes the less cylinder of diameter or have an arc-shaped surface, prevents that the thread derotation from destroying water seal parts 127 to upper feeding.
Implantable medical device described in this utility model can be a kind of in embedded nerve stimulator, Implanted cardiac pacemaker or implanted medication carrier.
As shown in Figure 8, this utility model also provides a kind of anti-screw implantable medical device 1 of structure of back-outing that has, and comprises housing 11, is arranged on battery in housing 11 and circuit board (not shown), is connected head 12 with described housing 11 is tightly connected.Connect a plurality of contiguous blocks 121 that are electrically connected to circuit board, radio antenna (not shown) and sealing filler 122 that head 12 comprises axially-aligned, axially offering for the connecting hole 123 that inserts line trap of contiguous block 121, contiguous block 121 radially offers the screw 124 that communicates with connecting hole 123.
Be provided with the screw 125 for conducting ring on the crimping lead wire plug in screw 124, be provided with the water seal parts 127 that have joint-cutting 126 on connecting hole 123, joint-cutting 126 is used for making torque spanner 2 tighten screw 125 by water seal parts 127, on an end of the nearly water seal parts 127 of screw 125 without thread.The top ends of screw 125 can be not offer thread or the thread that will offer grinds off and becomes the less cylinder of diameter or have an arc-shaped surface, prevents that the thread derotation from destroying water seal parts 127 to upper feeding, strengthens the sealing of implantable medical device.
Joint-cutting 126 diameters of water seal parts 127 are less than the thread external diameter of described screw 125, even therefore screw screws out contiguous block fully, screw can not pass the joint-cutting in the water seal parts yet, and only causes the water seal parts that stretcher strain is arranged, and can restore to the original state again when it screws in again.Reduced because doctor's maloperation causes the water seal component function destroyed, the doctor does not need special training, even operation also can not cause the back-out of screw arbitrarily.
The screw terminal oral area of the screw 124 of contiguous block 121 has one section counterbore 131, and the diameter of counterbore 131 is greater than the external diameter of screw 125.When doctor's derotation operated, number of times was more even maloperation makes derotation, because port part makes screw 125 idle running without thread, can not produce centripetal force upwards to screw 125, thereby prevented screw threads from going out the water seal parts and drop.And when screw was tightened in doctor's dextrorotation, this counterbore 131 can not make the threads in screw 124 may wear to the implant of screw 125 ends in feeding.
In present embodiment, water seal parts 127 are made for silica gel material, offer cannelure 129 on the excircle of water seal parts 127, are provided with becket 130 in cannelure 129, and the internal diameter of becket 130 is interference fit less than the external diameter of cannelure 130.Pass the joint-cutting 126 rotary screws operations at water seal parts 127 centers completes when torque spanner 2, after extracting in joint-cutting 126, because thereby interference fit becket 130 will push to the silica gel that is positioned at becket 130 sealing joint-cutting 126, make implantable medical device have good water sealing property, extend its service life.
Above the specific embodiment of the present utility model is described.Be illustrative for description of the present utility model herein, thereby scope of the present utility model should not be limited to the above-mentioned specific embodiment.It will be apparent to one skilled in the art that and the above-mentioned specific embodiment is carried out other distortion or change in the situation that do not break away from purport of the present utility model or substitutive characteristics, also should be considered as protection domain of the present utility model.
Claims (11)
1. one kind has the anti-screw implantable medical device of structure of back-outing, comprise housing, be arranged on battery and circuit board in housing, the connection head that is connected with described housing seal, it is characterized in that: described connection head comprises a plurality of contiguous blocks that are electrically connected to described circuit board of axially-aligned, radio antenna and sealing filler, axially offering for the connecting hole that inserts line trap of described contiguous block, described contiguous block radially offers the screw that communicates with described connecting hole, be provided with the screw for conducting ring on the described line trap of crimping in described screw, be provided with the water seal parts that have joint-cutting on described connecting hole, described joint-cutting is used for making torque spanner tighten screw by the water seal parts, be filled with the implant that covers thread on screw thread on one end of the nearly water seal parts of described screw.
2. a kind of anti-screw implantable medical device of structure of back-outing that has according to claim 1, it is characterized in that: described implant is epoxy resin.
3. a kind of anti-screw implantable medical device of structure of back-outing that has according to claim 1, it is characterized in that: the slot length of described water seal parts is less than the thread external diameter of described screw.
4. a kind of anti-screw implantable medical device of structure of back-outing that has according to claim 1, it is characterized in that: the screw terminal oral area of the screw of described contiguous block has one section counterbore, and the diameter of described counterbore is greater than the external diameter of screw.
5. a kind of anti-screw implantable medical device of structure of back-outing that has according to claim 1, it is characterized in that: described water seal parts are that silica gel material is made, offer cannelure on the excircle of described water seal parts, be provided with becket in described cannelure, the internal diameter of described becket is less than the external diameter of described cannelure.
6. Implanted medical system, comprise doctor's program control instrument, patient controller, implant electrode, it is characterized in that: comprise that also the line trap in described implant electrode and connecting hole is electrically connected as arbitrary described anti-screw implantable medical device of structure of back-outing that has in claim 1 to 5.
7. a kind of Implanted medical system according to claim 6 is characterized in that: described implantable medical device is a kind of in embedded nerve stimulator, Implanted cardiac pacemaker or implanted medication carrier.
8. one kind has the anti-screw implantable medical device of structure of back-outing, comprise housing, be arranged on battery and circuit board in housing, the connection head that is connected with described housing seal, it is characterized in that: described connection head comprises a plurality of contiguous blocks that are electrically connected to described circuit board of axially-aligned, radio antenna and sealing filler, axially offering for the connecting hole that inserts line trap of described contiguous block, described contiguous block radially offers the screw that communicates with described connecting hole, be provided with the screw for conducting ring on the described line trap of crimping in described screw, be provided with the water seal parts that have joint-cutting on described connecting hole, described joint-cutting is used for making torque spanner tighten screw by the water seal parts, on one end of the nearly water seal parts of described screw without thread.
9. a kind of anti-screw implantable medical device of structure of back-outing that has according to claim 8, it is characterized in that: the slot length of described water seal parts is less than the thread external diameter of described screw.
10. a kind of anti-screw implantable medical device of structure of back-outing that has according to claim 8, it is characterized in that: the screw terminal oral area of the screw of described contiguous block has one section counterbore, and the diameter of described counterbore is greater than the external diameter of screw.
11. a kind of anti-screw implantable medical device of structure of back-outing that has according to claim 8, it is characterized in that: described water seal parts are that silica gel material is made, offer cannelure on the external peripheral surface of described water seal parts, be provided with becket in described cannelure, the internal diameter of described becket is less than the external diameter of described cannelure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734645 CN203017582U (en) | 2012-12-28 | 2012-12-28 | Implantable medical device and system with anti-bolt screw-out structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734645 CN203017582U (en) | 2012-12-28 | 2012-12-28 | Implantable medical device and system with anti-bolt screw-out structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203017582U true CN203017582U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220734645 Withdrawn - After Issue CN203017582U (en) | 2012-12-28 | 2012-12-28 | Implantable medical device and system with anti-bolt screw-out structure |
Country Status (1)
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|---|---|
| CN (1) | CN203017582U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103893911A (en) * | 2012-12-28 | 2014-07-02 | 苏州景昱医疗器械有限公司 | Implantable medical device and system with structure for preventing screw-out of screws |
| CN105561475A (en) * | 2014-10-10 | 2016-05-11 | 创领心律管理医疗器械（上海）有限公司 | Sealing device and implantation/intervention medical device comprising sealing device |
| CN113082521A (en) * | 2021-04-08 | 2021-07-09 | 苏州景昱医疗器械有限公司 | Medical instrument and fixing device thereof |
-
2012
- 2012-12-28 CN CN 201220734645 patent/CN203017582U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103893911A (en) * | 2012-12-28 | 2014-07-02 | 苏州景昱医疗器械有限公司 | Implantable medical device and system with structure for preventing screw-out of screws |
| CN103893911B (en) * | 2012-12-28 | 2016-06-08 | 苏州景昱医疗器械有限公司 | A kind of have anti-screw and back-out the implantable medical device of structure and system |
| CN105561475A (en) * | 2014-10-10 | 2016-05-11 | 创领心律管理医疗器械（上海）有限公司 | Sealing device and implantation/intervention medical device comprising sealing device |
| CN105561475B (en) * | 2014-10-10 | 2018-04-27 | 创领心律管理医疗器械（上海）有限公司 | A kind of sealing device and plant/interventional medical device containing sealing device |
| CN113082521A (en) * | 2021-04-08 | 2021-07-09 | 苏州景昱医疗器械有限公司 | Medical instrument and fixing device thereof |
| CN113082521B (en) * | 2021-04-08 | 2024-05-28 | 景昱医疗科技（苏州）股份有限公司 | Medical instrument and fixing device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130626 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |