TWI571230B - Injection device - Google Patents

Description

Magnetic needle inserter

The invention relates to a nailing device, in particular to a magnetic needle device.

Cancer is a common and common disease in humans. The Department of Health reports that Taiwan’s cancer deaths are still the top ten death factors for Chinese people. This shows that cancer treatment is urgently needed in Taiwan. The medical equipment developed and produced by the Chinese people is an urgent task. Therefore, in the early stage of tumor discovery or scattered microscopic lesions, minimally invasive tumor cauterization can be used for treatment. Under the continuous advancement of medical technology, a magnetocaloric tumor ablation technique suitable for tumor treatment has been developed. The alternating magnetic field acts on a magnetic sensitive needle to cause the magnetic sensitive needle to generate eddy current and convert it into heat, thereby burning the tumor tissue, which can greatly reduce the cost of treatment and the suffering of the patient.

The thermal ablation technique needs to be used with the magnetic heating thermotherapy needle. However, at present, the doctor can only perform the operation by percutaneous puncture or open abdominal surgery, and the general affected part needs to be nailed into most of the needles during the operation, so the nailing process is performed. In addition, the needles need to enter and exit the human body several times, and in order to nail the needles into different positions of the affected part by hand, the incision area required for surgery is large, which is not conducive to the minimally invasive surgery and increases the burden on the patient. There is no aid in nailing the needle and For endoscopic surgery with endoscopic instruments.

Accordingly, it is an object of the present invention to provide a magnetic sensitive needle inserter that can be used to assist in the insertion of a magnetic sensitive needle.

Therefore, the magnetic needle device of the present invention is used for accommodating a plurality of needles and driving the needles into the affected part along a guiding direction, the magnetic needle inserting device comprising a housing unit and a housing disposed on the housing a needle feeding unit in the unit, and a nailing unit disposed in the housing unit. The housing unit includes a main housing. The needle feeding unit is movably disposed in the main housing, and the needles can be sent to the end of the main housing in the guiding direction. The nailing unit is movably disposed in the main casing relative to the main casing, and the needle sent to the end of the main casing can be sent out in the guiding direction to be nailed into the affected part.

The invention has the effect that the invention only needs to extend the end of the main casing into the human body during the operation, and can adjust the angle of the main casing to align different positions of the affected part and nail the plurality of needles. With the affected part, the needle does not need to enter and exit the body multiple times, and can reduce the area of the incision to reduce the burden on the patient, and can be combined with endoscopic instruments to facilitate minimally invasive surgery.

1‧‧‧ needles

2‧‧‧Shell unit

21‧‧‧Main housing

211‧‧‧ Shell Department

212‧‧‧Limited

213‧‧‧End

214‧‧‧Needing room

215‧‧‧ needle outlet

22‧‧‧Shrap

3‧‧‧Needle unit

31‧‧‧Transport

311‧‧‧ Body Department

312‧‧‧Hands

313‧‧‧First Positioning Department

314‧‧‧ Cards

32‧‧‧needle feeding mechanism

33‧‧‧First reset

34‧‧‧ needles

341‧‧‧elastic reed

35‧‧‧Guide

351‧‧‧Guide shell

352‧‧‧through hole

353‧‧‧Cut hook

36‧‧‧Needle bar

361‧‧‧ handle

362‧‧‧ Impact Department

363‧‧‧ shaft part

37‧‧‧ Spring

4‧‧‧Binding unit

41‧‧‧Put

411‧‧‧ Rod body

412‧‧‧Second Positioning Department

413‧‧‧Sleeve

414‧‧‧Axis body

42‧‧‧Second reset

43‧‧‧ Third reset

5‧‧‧Measurement unit

50‧‧‧ openings

51‧‧‧Outer casing

52‧‧‧Runner

53‧‧‧roller

54‧‧‧ barcode tape

A‧‧‧Direction

B‧‧‧Vertical direction

C‧‧‧Limited shrapnel

The other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is a side view illustrating an embodiment of a magnetic sensitive needle inserter of the present invention; 2 and 3 are side views for assistance in explaining each part of FIG. 1; FIG. 4 is a cross-sectional view showing one of the needle feeding units in the embodiment; FIG. 5 is a side view showing one of the embodiments Figure 6 is a side view showing one of the measuring units in the embodiment; Figure 7 is a perspective view, and Figure 6 is assisted; Figure 8 is a side view showing another aspect of the measuring unit; and Figure 9 13 is a side view showing the manner of use of the embodiment.

Referring to FIG. 1 , an embodiment of a magnetic needle device of the present invention is used for accommodating a plurality of needles 1 and nailing the needles 1 in a guiding direction A The affected part. The magnetic needle inserter comprises a housing unit 2, a needle feeding unit 3 disposed on the housing unit 2, a nailing unit 4 disposed on the housing unit 2, and a housing unit 2 disposed on the housing unit 2 and connected thereto. The measuring unit 5 is driven into the unit 4.

Referring to FIG. 2 and FIG. 3, the outer casing unit 2 includes a main casing 21 extending along the guiding direction A, and two are spaced apart from each other in a vertical direction B perpendicular to the guiding direction A and are obliquely disposed on the main casing. The inside of the 21 is a card 22 corresponding to the needle 1 of the needle. The main housing 21 has a hollow outer casing portion 211, a limiting portion 212 disposed in the outer casing portion 211 along the vertical direction B, and an outer portion extending outward in the guiding direction A by the outer casing portion 211. End portion 213. The distal end portion 213 is gradually folded in the guiding direction A to surround a needle chamber 214 that communicates with the inside of the outer casing portion 211 and is adapted to pass a needle 1 , and a needle that communicates with the needle chamber 214 and the outside. Port 215. The elastic pieces 22 are disposed at the distal end portion 213 and located in the needle chamber 214, and The distance between the elastic pieces 22 is gradually approached as shown in FIG. 3 along the guiding direction A, and the end thereof is adjacent to the ejection opening 215.

The needle feeding unit 3 includes a conveying pipe 31 extending in the guiding direction A and located in the outer casing portion 211 and passing through the limiting portion 212, and a conveying pipe 31 disposed at one end of the conveying pipe 31 away from the outlet port 215. a needle feeding mechanism 32, a first returning member 33 having one end stuck on the conveying pipe 31 and the other end being stuck on the limiting portion 212 and located between the limiting portion 212 and the needle feeding mechanism 32, and A cassette 34 detachably mounted on the delivery tube 31 and adjacent to the needle feeding mechanism 32 for receiving the plurality of needles 1. The duct 31 has a tubular body portion 311 extending in the guiding direction A and passing through the limiting portion 212, and is disposed on the tubular body portion 311 as shown in FIG. The handle portion 312 of the outer casing portion 211 is disposed on the tubular body portion 311 at two intervals and facing the first positioning portion 313 of the nailing unit 4, and is formed obliquely on the tubular body portion as shown in FIG. The 311 faces the card abutting portion 314 at one end of the needle feeding mechanism 32. The first returning member 33 is interposed between the limiting portion 212 and the first positioning portion 313 away from the needle feeding mechanism 32. The butt 34 is in communication with the tubular portion 311 and is movable relative to the main casing 21 with the tubular portion 311, and the inner end of the butt 34 is provided with an elastic spring 341 as shown in FIG. The accommodating needles 1 are pushed up in the vertical direction B. The inner portion of the tube portion 311 near the butt 34 can be disposed along the vertical direction B as shown in FIG. 2 to prevent the elastic tube C from being spaced apart to prevent the tube 31 from being placed in an upright manner. The needle 1 in the body 311 is moved along the tube body 311 by gravity and is away from the needle feeding unit 3.

Referring to FIG. 4, the needle feeding mechanism 32 is located away from the butt 34. One side of the needle 315 (see FIG. 3) has a guiding member 35 movably disposed on the tube portion 311 with respect to the tube portion 311, and is disposed in the guiding member 35. And a needle feeding rod 36 extending at one end of the tube body portion 311 and a spring 37 disposed on the needle feeding rod 36 and located in the tube body portion 311. The guiding member 35 has a guiding portion 351 which is inserted into the tubular portion 311 at one end, a through hole 352 which is opened in the guiding portion 351 and communicates with the tubular portion 311, and a guiding shell The portion 351 extends in the direction of the tubular body portion 311 and abuts against the hook portion 353 of the engaging portion 314. The needle-feeding rod 36 has a shank portion 361 having an outer diameter larger than the through-hole 352 and located outside the tube portion 311 and the sleeve portion 351, and an outer diameter of the needle-shaped portion 311 is larger than the through-hole 352. And an impact portion 362 located in the guide shell portion 351, and a shaft portion 363 through which the through hole 352 is inserted and the two ends are respectively connected to the pull handle portion 361 and the impact portion 362. The spring 37 is wound around the shaft portion 363 and is limited between the closed end of the guide shell portion 351 and the impact portion 362. The distance between the hook portion 353 and the closed end of the guide shell portion 351 is less than Since the spring 37 is long, the impact portion 362 is restrained by the hook portion 353 to compress the spring 37.

Referring to FIG. 3 and FIG. 5, the driving unit 4 includes a push rod 41 extending along the guiding direction A and spaced apart from the outer tube portion 211 by the conveying pipe 31, and one end is stuck on the push rod 41. The other end of the card is placed on the limiting portion 212 and located between the limiting portion 212 and the second resetting member 42 between the butt 34, and one end disposed at the end of the push rod 41 facing the hair exit opening 215 The third return member 43 having a larger diameter than the exit port 215. The push rod 41 has a rod portion 411 extending in the guiding direction A, and the two respectively correspond to each other. The first positioning portion 313 is disposed on the rod body portion 411 and faces the second positioning portion 412 of the first positioning portion 313 . In this embodiment, the rod portion 411 is a sleeve structure, and the outer sleeve 413 has an outer diameter larger than the needle chamber 214, and the outer diameter of the shaft body 414 located in the sleeve 413 is smaller than the needle. The second reset member 42 is disposed outside the sleeve 413. The third reset member 43 is disposed in the sleeve 413 and is disposed on the shaft body 414. The first positioning portion 313 and the second positioning portions 412 are trapezoidal protrusion structures, but are not limited thereto.

Referring to FIG. 6 and FIG. 7 , the measuring unit 5 includes an outer casing 51 integrally formed with the outer casing portion 211 and having an opening 50 , a rotating wheel 52 pivoted in the outer casing 51 , and a rotating wheel 52 . Rollers 53 disposed in the outer casing 51 are fixed to the outer casing 51 at one end and fixed to the rod portion 411 at the other end, and a bar code strip 54 having a depth mark is displayed. The rotating wheel 52 and the roller 53 cooperate to clamp the barcode strip 54 so that the barcode strip 54 fixed to the outer casing 51 is directed toward the opening 50 of the outer casing 51, so that the barcode strip 54 is One of the depth marks can be displayed on the opening 50 as shown in FIG. 7. The end of the strip tape 54 fixed to the outer casing 51 has a resetting and retracting mechanism. Of course, the measuring unit 5 may also be a structure similar to a tape measure as shown in FIG. 8. One end of the bar code strip 54 is fixed on the rod body portion 411, and the other end is fixed on the wheel 52. The wheel 52 is fixed on the wheel 52. With a reset mechanism, the barcode strip 54 can be scrolled to the original position.

Referring to Figures 9 and 10, the present invention is used in the following manner: the needles 1 are placed in the butt 34, and the needles 1 located at the lowermost position enter the transport by the pressing of the elastic springs 341. Tube body portion 311 of tube 31 By means of the limit springs C, the needle 1 is prevented from falling into the needle chamber 214 away from the needle feeding unit 3 in the unneedleed state due to the tubular body portion 311 being in an upright state. The handle portion 312 of the transport tube 31 is pushed in the guiding direction A, and the tubular portion 311 is moved toward the needle chamber 214 and placed in the needle chamber 214 as shown in FIG. The first returning member 33 is gradually compressed during the pushing process, and the first positioning portion 313 away from the needle exit opening 215 is passed over the second positioning portion 412 away from the butt 34, and the handle is released by the user. After the portion 312, the first positioning portion 313 is locked by the second positioning portion 412 as shown in FIG. 10 to limit the tubular portion 311.

Referring to FIG. 11 and FIG. 4, the guide portion 351 is gently pushed to move the hook portion 353 outward along the inclined surface of the engaging portion 314 of the conveying pipe 31. At this time, the hook portion 353 is no longer blocked. The impact portion 362 releases the spring 37, thereby pushing the impact portion 362 to move along the guiding direction A and hit the needle 1 located in the tube portion 311, so that the needle 1 along the tube portion 311 is as shown in FIG. The shrapnel 22 is shown inserted into the needle chamber 214 as shown. It should be specially noted that after the spring 37 is released, the needle bar 36 is placed in the tube body 311 and is located below the butt 34, so that the needle 1 located at the bottom is blocked and cannot fall. The tube body 311 is inserted into the body portion 311.

Referring to FIG. 13 , the push rod 41 is slightly pulled downward, so that the first positioning portion 313 is no longer engaged with the second positioning portion 412 , thereby releasing the first return member 33 to reset the delivery tube 31 and away from The first positioning portion 313 of the butt 34 is opened by the second positioning portion 412 away from the butt 34 by the force of the reset, so that the first positioning portion 313 is located behind the second positioning portion 412. Then push the push rod 41 to be stuck in the needle chamber The needle 1 in the 214 is ejected outwardly through the needle opening 215 and is driven into the affected part. During this process, the second returning member 42 is gradually compressed, and the sleeve 413 is pressed against the inlet of the needle chamber 214. When the outer diameter of the sleeve 413 is large, the shaft 414 can pass through the sleeve 413 and protrude into the needle chamber 214 to push against the needle 1. The third reset member 43 is compressed by the relative movement of the sleeve 413 and the shaft 414.

It should be particularly noted that the measuring unit 5 is based on the pusher 41 abutting the needle 1 as a reference point. When the user continues to move the push rod 41 along the guiding direction A, the needle 1 is The needle outlet 215 is ejected, and the needle insertion depth (see FIG. 7) of the outer casing 51 can be started to read the needle depth for the user to judge whether or not to stop the needle. When the push rod 41 is released, the second returning member 42 and the third returning member 43 are released, and the push rod 41 is overcome between the first positioning portion 313 and the second positioning portions 412. Reset by snap limit. Referring to FIG. 4, the handle portion 361 of the needle feeding rod 36 is pulled back to the position again, so that the impact portion 362 is again restrained by the hook portion 353 and no longer protrudes into the tube portion 311. Inside, the needle device 1 located at the lowermost position is fed into the tube body portion 311 by the elastic spring piece 341 (see Fig. 2), and the next nailing operation can be performed.

Referring to FIG. 2 and FIG. 3, the needle unit 1 can be fed into the needle chamber 214 and nailed into the affected part by the cooperation of the needle feeding unit 3 and the nailing unit 4, and the measuring unit 5 can be used by the user. Understand the depth of the needle and improve the accuracy of the operation.

In summary, the present invention can continuously perform the needle insertion operation without requiring the needle device 1 to enter and exit the human body multiple times, and the surgical incision is small, and can be matched with the endoscope. The device is used for facilitating minimally invasive surgery. The measuring unit 5 is used for the user to understand the depth of the needle. The design of the tubular shape facilitates the user to aim at the affected part, reduces the interference of human factors and improves the precision of the operation, so it can be achieved. The object of the invention.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

1‧‧‧ needles

2‧‧‧Shell unit

3‧‧‧Needle unit

4‧‧‧Binding unit

5‧‧‧Measurement unit

A‧‧‧Direction

B‧‧‧Vertical direction

Claims (8)

A magnetic sensitive needle inserting device for accommodating a plurality of needles and driving the needles into the affected part along a guiding direction, the magnetic needle inserting device comprising: a shell unit comprising a main casing, The main housing has an outer casing portion and a distal end portion extending from the outer casing portion in the guiding direction. The distal end portion is gradually folded in the guiding direction to surround the inner portion of the outer casing portion and is ready for use. a needle insertion chamber through which the needle passes, and a needle outlet that communicates with the needle chamber and the outside; a needle delivery unit movably disposed in the main housing of the housing unit, and the needles can be along the guiding direction And the needle feeding unit includes a conveying pipe extending in the guiding direction of the main casing and a needle feeding mechanism disposed at one end of the conveying pipe, and a relative The main casing is movably disposed on the conveying pipe, and is adjacent to the needle feeding mechanism and is configured to accommodate the needles of the plurality of needles, and the needle feeding mechanism is configured to pass the needles entering the conveying pipe from the needles through the conveying The other end of the tube is sent to the end of the main casing; and a nailing unit is provided The main housing of the housing unit is movably disposed in the main housing, and the needle sent to the end of the main housing can be sent out in the guiding direction to be nailed into the affected part, and the driving unit includes a parallel sending a delivery tube of the needle unit and a push rod disposed in the outer casing portion of the main housing, wherein the push rod can push the corresponding needle from the top of the main housing to the outside of the main housing along the guiding direction. The susceptor needle inserter of claim 1, wherein the outer casing unit further comprises a plurality of bullets disposed on the end portion and located in the needle chamber a sheet, when the conveying tube is pushed, the conveying tube can be moved in the guiding direction to align the needle chamber, and the needle feeding mechanism sends the corresponding needle to the needle chamber through the conveying tube and is The elastic piece is clamped and positioned, and then the needle is pushed out through the needle insertion port to be nailed into the affected part. The magnetic needle insertion device according to claim 2, wherein the needle feeding mechanism has a guiding member that communicates with the conveying tube, and a feeding portion disposed in the guiding member and extending at one end thereof in the conveying tube a needle bar, and a spring disposed on the needle feeding bar and located in the conveying pipe, the guiding member has a guiding portion that is connected to the conveying pipe in a guiding direction relative to the conveying pipe, a through hole opened in the guide shell portion and communicating with the conveying pipe, and a hook portion extending from the guide shell portion toward the conveying pipe and abutting against the conveying pipe, the needle feeding rod is along the guiding The direction extends through the through hole into the delivery tube. The susceptor needle-injector of claim 3, wherein the needle-feeding rod has a shank portion outside the conveying pipe and having an outer diameter larger than the through hole, and a shank portion located in the conveying pipe and having an outer diameter larger than the a through hole and an impact portion in the guide shell portion, and a shaft portion through which the through hole is respectively connected to the pull handle portion and the impact portion, the spring is wrapped around the shaft portion and is The distance between the hook portion and the guide portion is smaller than the original length of the spring, and the impact portion is stuck by the hook portion. The spring is in a compressed state, and when the guiding portion of the guiding member is pushed, the hook portion can be prevented from being caught by the engaging portion, so that the spring releases the elastic force and the impact portion is along the guiding portion. The direction of the impact strikes the needle placed in the delivery tube. The susceptor needle inserter of claim 4, wherein the transport tube has a tube body portion, a handle portion that is disposed on the main body housing and disposed on the tube body portion, at least one of which is disposed on the tube a first positioning portion on the body and facing the push rod, and a pair of abutting portions of the tube body portion that are inclined to be formed on the tube body portion, when the guide member is pushed, the hook portion is along the The inclined portion of the engaging portion moves outwardly, so that the striking portion is no longer blocked by the hook portion, the push rod has a rod body portion, and at least one is disposed on the rod body portion and faces the conveying tube And corresponding to the second positioning portion of the first positioning portion. The susceptor needle inserter of claim 5, wherein the needle feeding unit further comprises a first resetting member disposed on the conveying pipe, the nailing unit further comprising a first set on the push rod a resetting member, and a third resetting member disposed on the one end of the push rod toward the needle chamber, the main housing further comprising a passage for the conveying pipe and the push rod, and limiting the first resetting member and the a limiting portion of the second reset member. The magnetic sensitive needle inserter of claim 1, further comprising a measuring unit disposed on the outer casing unit and connected to the nailing unit to measure the depth of the needle. The susceptor needle inserter of claim 6, further comprising a measuring unit disposed on the outer casing unit and connected to the nailing unit to measure the depth of the needle, the measuring unit comprising a main unit And an outer cover shell having an opening, a rotating wheel pivoted in the outer casing, a roller spaced apart from the rotating wheel, and one end disposed on the outer casing and the pushing On the pole, and by the runner and the roller a shaft-clamped barcode strip having an opening facing the barcode strip for the user to identify a depth mark displayed on the barcode strip, the pusher being pushed outward when the pusher pushes the corresponding needle The end of the strip of tape is pulled relative to the outer casing to change the depth mark displayed on the opening.