CN209916128U - Carpal tunnel incision kit for minimally invasive surgery - Google Patents
Carpal tunnel incision kit for minimally invasive surgery Download PDFInfo
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- CN209916128U CN209916128U CN201920380534.XU CN201920380534U CN209916128U CN 209916128 U CN209916128 U CN 209916128U CN 201920380534 U CN201920380534 U CN 201920380534U CN 209916128 U CN209916128 U CN 209916128U
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- sleeve
- knife
- hook
- puncture needle
- breach
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Abstract
The utility model discloses a carpal tunnel incision external member for minimally invasive surgery, which comprises a sleeve, a puncture needle and a bush-hook, wherein the sleeve is internally provided with a through hole; the bush-hook comprises a knife body, one end of the knife body is provided with a handle, the other end of the knife body is provided with a knife head, the knife head extends along the radial direction of the knife body, the cutting edge of the knife head is arranged on one side close to the handle, the cutting edge of the knife head is an inwards concave arc-shaped cutting edge, and one side, far away from the arc-shaped cutting edge, of the knife head is provided with a sawtooth section; the telescopic front end is provided with the toper spigot surface, and the breach of rectangular shape is seted up along the sleeve axial to telescopic lateral wall, and the breach supplies the tool bit to stretch out the sleeve, tool bit and breach sliding fit. The utility model has the advantages of it is following and effect: the hook knife penetrates into the sleeve to cut from inside to outside, so that nerves or blood vessels are not easy to damage, the safety is high, and the puncture needle is easy to insert; the psychological pressure on the patient caused by adopting the small wound is small; and the limiting block is adopted, so that the cutting depth can be conveniently controlled, and the integral separation of the hook cutter can be avoided.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a carpal tunnel incision external member for minimally invasive surgery.
Background
Carpal tunnel syndrome is the most common one of peripheral nerve entrapment syndromes, and is a series of symptoms and signs caused by entrapment of the median nerve on the wrist, which is better at age of 30 ~ 50 years, female is 5 times as old as male, bilateral patients account for 1/3 ~ 1/2, the ratio of female to male is 9 to 1, bilateral patients suffer from pain and sensory numbness caused by compression of the median nerve on the wrist, thumb, forefinger and middle finger, the sensory dysfunction of the tip is usually manifested in the early stage, the patients often suffer from numbness or burning pain for hours after falling asleep, the patients are relieved after moving, the neurotrophic disorder occurs due to long course of disease, the internaloid muscle atrophy, the intermittent skin whitening and cyanosis occur, the thumb, the forefinger, the fingertip necrosis or the atrophic ulcer appears in the serious patients, the current treatment modes are mainly conservative treatment and operation treatment, the traditional open operation mode, the arthroscopic minimally invasive operation mode, the single or double small incision operation mode, the traditional minimally invasive operation mode is a minimally invasive operation mode in which the nerve is performed by stretching into the outside of the wrist and cutting the carpal tunnel, and the minimally invasive operation process is difficult to cut the carpal nerve.
The prior Chinese patent with publication number CN204016430U discloses a carpal tunnel incision decompression knife, which comprises an isolation plate inserted into an incision of an incision wrist and isolated between a transverse carpal ligament and a median nerve, wherein the isolation plate is provided with a guide mechanism and a knife which is matched with the guide mechanism to move directionally so as to incise the transverse carpal ligament. In the use process, the isolation plate is isolated between the transverse carpal ligament and the median nerve, and ensures that the cutter moves directionally through the guide mechanism to cut off the transverse carpal ligament for pressure reduction.
However, the incision and decompression of the carpal tunnel described above have the following disadvantages: in order to make the isolation board stretch into the wrist, a large incision is needed, so that the problem of large psychological pressure on a patient is possibly caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a carpal tunnel cuts external member for minimal access surgery adopts the bush-hook to penetrate then from inside to outside the mode of cutting in the sleeve, has not fragile nerve or vascular effect, and the security is higher, and the wound that opens in addition is less, and is less to patient's psychological pressure, and it is more convenient that the pjncture needle stretches into the wrist.
The above technical purpose of the present invention can be achieved by the following technical solutions: a carpal tunnel incision kit for minimally invasive surgery comprises a sleeve, a puncture hole is formed in the sleeve along the axial direction of the sleeve, and the sleeve further comprises a puncture needle and a hook knife which respectively extend into the puncture hole; the bush-hook comprises a knife body, one end of the knife body is provided with a handle, the other end of the knife body is provided with a knife head, the knife head extends along the radial direction of the knife body, the cutting edge of the knife head is arranged on one side close to the handle, the cutting edge of the knife head is an inwards concave arc-shaped cutting edge, and one side, far away from the arc-shaped cutting edge, of the knife head is provided with a sawtooth section; the telescopic front end is provided with the toper spigot surface, and the breach of rectangular shape is seted up along the sleeve axial to telescopic lateral wall, and the breach supplies the tool bit to stretch out the sleeve, tool bit and breach sliding fit.
Through adopting above-mentioned technical scheme, medical personnel cooperate with ultrasonic development when carrying out the carpal tunnel and cutting the operation process, open a wound that can supply the sleeve to stretch into in corresponding art district epidermis department of disinfecting earlier, then insert the pjncture needle to the wrist along the blood vessel, make the overall position of pjncture needle be located the carpal tunnel below, upwards make its front end cover slide along the pjncture needle behind the pjncture needle afterbody with the breach of sleeve lateral wall again, stretch into in the wound gradually under the guide effect of toper spigot surface, this in-process pjncture needle can play the effect of location direction to the sleeve. After the sleeve moves to a proper position, the puncture needle is axially pulled away from the interior of the sleeve, finally, the handle of the bush-hook is held by hand to axially extend the bush-hook into the sleeve along the sleeve, the tool bit is always positioned in the through hole in the process of extending the bush-hook into the sleeve, and the tool bit is upwards aligned with the notch. When cutting, medical personnel only need upwards mention the bush-hook and pull back to sleeve rear end and can open the carpal tunnel, and the cutter head slides along the breach relatively all the time at the in-process that opens. In the process, the sawtooth section is beneficial to ultrasonic development, so that the position of the cutter head is displayed more clearly. Therefore, only the wound with the diameter of the sleeve needs to be formed in the operation process, the psychological pressure on a patient is small, and the puncture needle can conveniently extend into the wrist. In addition, the mode that the bush-hook penetrates into the sleeve and then cuts from inside to outside is adopted, the cutting depth is easy to control, the effect that nerves or blood vessels are not easy to damage is achieved, and the safety is high.
The utility model discloses a further set up to: the tail end of the puncture needle is provided with a thread section, the length of the puncture needle is greater than that of the sleeve, and when the puncture needle extends into the sleeve, the thread section extends out of the sleeve.
By adopting the technical scheme, after the sleeve extends into the wrist along the puncture needle, the thread section extends out of the sleeve, so that the puncture needle can be held on the thread section by a hand when being pulled away from the sleeve, the puncture needle is conveniently pulled away, and the control degree is better.
The utility model discloses a further set up to: the thread segments were set to 1 cm.
By adopting the technical scheme, if the thread section is long, the friction between the puncture needle and the peripheral internal tissues is large when the puncture needle extends into the wrist, so that obvious pain can be caused, and if the thread section is too short, the puncture needle is inconvenient to hold.
The utility model discloses a further set up to: be provided with the stopper on the blade, the stopper wholly is "T" font of handstand with the cross-section of blade, and when the breach was stretched out to the tool bit, the stopper offseted with the sleeve inner wall that is located the breach both sides.
Through adopting above-mentioned technical scheme, set up the stopper on the blade, when the bush-hook wholly upwards mention and make the tool bit stretch out the sleeve, the stopper can be injectd the position that the bush-hook stretches out, is convenient for control the degree of depth of tool bit cutting on the one hand, and on the other hand still can avoid the bush-hook wholly to break away from.
The utility model discloses a further set up to: the handle is provided with anti-skid lines.
Through adopting above-mentioned technical scheme, when the bush-hook at the push-and-pull in-process, anti-skidding line can play skid-proof effect to a certain extent, avoids the tool bit to cause the accidental injury to tissue inside to improve the security.
The utility model discloses a further set up to: the side wall of the bush-hook is provided with scales along the axial direction of the bush-hook.
Through adopting above-mentioned technical scheme, medical personnel are in the operation process, and the scale of bush-hook lateral wall cooperatees with the sleeve, can clearly know the length that the bush-hook stretches into in the sleeve to the security of multiplicable operation.
To sum up, the utility model discloses following beneficial effect has:
1. the mode that the hook knife penetrates into the sleeve and then cuts from inside to outside is adopted, so that the device has the effect of not damaging nerves or blood vessels easily and has higher safety;
2. the psychological pressure of the patient caused by the small wound is small, and the puncture needle is easy to extend into the small wound;
3. the tool body is provided with the limiting block, so that the cutting depth of the tool bit can be conveniently controlled, and the whole separation of the bush-hook from the sleeve can be avoided.
Drawings
Fig. 1 is a schematic diagram of the overall structural relationship of the embodiment.
FIG. 2 is a schematic view showing the position relationship of the state where the tool bit of the hook knife is extended out of the notch in the embodiment.
In the figure: 1. a sleeve; 11. a through hole; 2. puncturing needle; 3. a bush-hook; 31. a blade body; 32. a handle; 33. a cutter head; 34. calibration; 4. a tapered guide surface; 5. a notch; 6. a threaded segment; 7. anti-skid lines; 8. an arc-shaped cutting edge; 9. a sawtooth section; 10. and a limiting block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A carpal tunnel incision kit for minimally invasive surgery is shown in figures 1 and 2 and comprises a sleeve 1, a puncture needle 2 and a bush-hook 3, wherein a through hole 11 is formed in the sleeve 1 along the axial direction of the sleeve 1, and the puncture needle 2 and the bush-hook 3 which are smooth can respectively extend into the sleeve 1. The front end of sleeve 1 is provided with toper spigot surface 4, and sleeve 1's lateral wall is seted up rectangular shape breach 5 along sleeve 1 axial. The tail of the puncture needle 2 is provided with a section of thread section 6, in the embodiment, the length of the thread section 6 is set to be 1cm, the whole length of the puncture needle 2 is larger than that of the sleeve 1, and when the sleeve 1 is sleeved on the puncture needle 2, the thread section 6 extends out of the sleeve 1. The bush-hook 3 comprises a strip-shaped knife body 31, the length of the knife body 31 is greater than that of the sleeve 1, scales 34 are arranged on the side wall of the knife body 31 along the axial direction, the rear end of the knife body 31 is bent upwards, a handle 32 is arranged at the rear end of the knife body 31, the handle 32 and the knife body 31 form a certain angle, and can be conveniently held by medical personnel, anti-skid patterns 7 are arranged on the handle 32, a knife head 33 which is integrally arc-shaped is arranged at the front end of the knife body 31, the knife head 33 extends upwards along the radial direction of the knife body 31 and can be in sliding fit with the notch 5, the cutting edge of the knife head 33 is arranged on one side close to the handle 32, the cutting edge of the knife head 33 is arranged to be an inwards concave arc; the lower side wall of the knife body 31 is provided with a limiting block 10, and the limiting block 10 and the cross section of the knife body 31 are integrally inverted to be T-shaped.
The utility model discloses a basic operating principle does: medical personnel cooperate with supersound development when carrying out the carpal tunnel and cutting the operation process, open a wound that can supply sleeve 1 to stretch into in the corresponding art district epidermis department of disinfecting earlier, then insert pjncture needle 2 along the blood vessel to the wrist, make the overall position of pjncture needle 2 be located the carpal tunnel below, the insertion process is more convenient, upwards make its front end cover in 2 afterbody back edge pjncture needle 2 of pjncture needle slide forward with breach 5 of sleeve 1 lateral wall again, stretch into in the wound gradually under the guide effect of toper spigot surface 4, this in-process pjncture needle 2 can play the effect of location direction to sleeve 1. After the sleeve 1 extends into a proper position of the wrist along the puncture needle 2, the medical staff holds the handle on the thread section 6 to axially draw the puncture needle 2 out of the sleeve 1, so that the drawing is convenient and the control degree is good. Finally, the handle 32 of the bush-hook 3 is held by hand to axially extend the bush-hook 3 into the sleeve 1 along the sleeve 1, the tool bit 33 is always positioned in the through hole 11 in the process of extending the bush-hook 3, and the tool bit 33 is aligned to the notch 5 upwards. When the cutting, medical personnel only need upwards mention bush-hook 3 and can open the carpal tunnel to sleeve 1 rear end pull-back, cut the in-process tool bit 33 and follow breach 5 relative slip all the time, at the push-and-pull in-process when bush-hook 3, anti-skidding line 7 can play skid-proof effect to a certain extent, avoid tool bit 33 to cause the accidental injury to tissue inside, scale 34 cooperatees with sleeve 1, can clearly know the length that bush-hook 3 stretched into in the sleeve 1 to improve the security. In the process, the sawtooth section 9 is beneficial to ultrasonic development, so that the position of the tool bit 33 is displayed more clearly. So, only need set up the wound of sleeve 1 diameter size in the operation process can, less to the psychological pressure that the patient produced, in addition, adopt the bush-hook 3 to penetrate the mode that then cuts from inside to outside in the sleeve 1, easily control the depth of cut, have the effect of not fragile nerve or blood vessel, the security is higher.
Set up stopper 10 on blade 31, when bush-hook 3 wholly upwards mentions and makes tool bit 33 stretch out sleeve 1, stopper 10 upper surface supports in the sleeve 1 inner wall that is located breach 5 both sides, and stopper 10 can prescribe a limit to the position that bush-hook 3 stretches out, the degree of depth of the control tool bit 33 cutting of being convenient for on the one hand, and on the other hand still can avoid bush-hook 3 wholly to break away from sleeve 1.
The length of the thread section 6 is preferably set to 1cm, and if the thread section 6 is long, the friction between the puncture needle 2 and the peripheral internal tissues is large when the puncture needle extends into the wrist, which may cause a significant pain, and if the thread section 6 is too short, it is inconvenient to hold.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (6)
1. A carpal tunnel incision kit for minimally invasive surgery, comprising: the puncture needle comprises a sleeve (1), a through hole (11) is formed in the sleeve (1) along the axial direction of the sleeve (1), and the puncture needle further comprises a puncture needle (2) and a hook cutter (3) which respectively extend into the through hole (11); the hook knife (3) comprises a knife body (31), one end of the knife body (31) is provided with a handle (32), the other end of the knife body (31) is provided with a knife head (33), the knife head (33) extends along the radial direction of the knife body (31), the cutting edge of the knife head (33) is arranged on one side close to the handle (32), the cutting edge of the knife head (33) is arranged to be an inwards concave arc-shaped cutting edge (8), and one side, far away from the arc-shaped cutting edge (8), of the knife head (33) is provided with a sawtooth section (9); the front end of sleeve (1) is provided with toper spigot surface (4), the lateral wall of sleeve (1) is followed sleeve (1) axial is seted up rectangular shape breach (5), breach (5) confession tool bit (33) stretch out sleeve (1), tool bit (33) with breach (5) sliding fit.
2. A carpal tunnel incision kit for minimally invasive surgery as in claim 1, wherein: the tail end of the puncture needle (2) is provided with a thread section (6), the length of the puncture needle (2) is larger than that of the sleeve (1), and when the puncture needle (2) extends into the sleeve (1), the thread section (6) extends out of the sleeve (1).
3. A carpal tunnel incision kit for minimally invasive surgery as in claim 2, wherein: the thread section (6) is set to be 1 cm.
4. A carpal tunnel incision kit for minimally invasive surgery as in claim 1, wherein: be provided with stopper (10) on blade (31), stopper (10) with the whole inverted "T" font that is of cross-section of blade (31) works as tool bit (33) stretches out when breach (5), stopper (10) with be located sleeve (1) inner wall of breach (5) both sides offsets.
5. A carpal tunnel incision kit for minimally invasive surgery as in claim 1, wherein: the handle (32) is provided with anti-skid grains (7).
6. A carpal tunnel incision kit for minimally invasive surgery as in claim 1, wherein: the side wall of the bush-hook (3) is provided with scales (34) along the axial direction of the bush-hook (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380534.XU CN209916128U (en) | 2019-03-25 | 2019-03-25 | Carpal tunnel incision kit for minimally invasive surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380534.XU CN209916128U (en) | 2019-03-25 | 2019-03-25 | Carpal tunnel incision kit for minimally invasive surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209916128U true CN209916128U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920380534.XU Expired - Fee Related CN209916128U (en) | 2019-03-25 | 2019-03-25 | Carpal tunnel incision kit for minimally invasive surgery |
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| Country | Link |
|---|---|
| CN (1) | CN209916128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113100875A (en) * | 2021-04-07 | 2021-07-13 | 杨安聪 | Minimally invasive treatment auxiliary device for carpal tunnel syndrome and using method thereof |
-
2019
- 2019-03-25 CN CN201920380534.XU patent/CN209916128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113100875A (en) * | 2021-04-07 | 2021-07-13 | 杨安聪 | Minimally invasive treatment auxiliary device for carpal tunnel syndrome and using method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |