CN109475353A - Needle handle - Google Patents
Needle handle Download PDFInfo
- Publication number
- CN109475353A CN109475353A CN201680087672.8A CN201680087672A CN109475353A CN 109475353 A CN109475353 A CN 109475353A CN 201680087672 A CN201680087672 A CN 201680087672A CN 109475353 A CN109475353 A CN 109475353A
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- ring
- actuator
- proximal end
- diameter value
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
- A61B2010/045—Needles
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Surgical Instruments (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a kind of medical instrument, which has aspiration needle and handle device.The handle device controls power needed for user activates needle, and provides biggish power with initial activation, and provide lesser power to continue to slide.Groove at the either end of the activation serves as locking member, which provides the feedback with " spring " sound at the either end of the stroke.The shank also supports " unidirectional " manufacture of handle assembly, and wherein O-ring passes through larger-diameter axis during initial assembling, to prevent from dismantling.
Description
Technical field
The present invention relates to the needle suction units for sample of tissue.
Background technique
Explanation in this part only provides background information relevant to the disclosure, and may not constitute the prior art.
Needle suction unit, such as through bronchus needle aspirate (TBNA) device, for acquire from target tissue (such as tumour and
Nodule) sample to be analyzed.
Some needle suction handle designs use simple cantilever spring, friction fit or O-ring.Previous O-ring is set
Meter provides some " locking " abilities seated an o-ring using groove.However, those grooves are generally shallow, this can also permit
Perhaps needle unexpectedly advances in the absence of user input, so that potential safety problem or range be caused to damage.
Summary of the invention
The present invention provides a kind of example medical instrument for sample of tissue.The example medical instrument includes shank,
The shank controls power needed for user activates needle, and provides biggish power with initial activation, wherein provide lesser power with after
Continuous sliding.Groove at the either end of activation serves as locking member, these locking members provide tool at the either end of stroke
There is the feedback of " spring " sound.The shank also supports " unidirectional " manufacture of handle assembly, and wherein O-ring passes through during initial assembling
The axis of major diameter, to prevent from dismantling.O-ring and trench interface are also designed to not provide Fluid Sealing
Traditional), to support sterilizing methods.
Higher initial activation power provides the safety of unintended activation.When bounce back needle when, the outer diameter of needle actuator shaft
The variation of slope provides better feeling." spring " at needle actuator range both ends provides tactile and audio feedback for user.
According to description provided herein, other feature, advantages and the scope of application be will become obvious.It should be appreciated that tool
Body embodiment and specific example are only for reaching illustrative purpose, it is no intended to limit the scope of the present disclosure.
Detailed description of the invention
Being merely to illustrate property of attached drawing purpose described herein, it is no intended to limit the scope of the present disclosure in any way.It is attached
Component in figure is not drawn necessarily to scale, but is focused on and illustrated in the principle of the present invention.In the accompanying drawings:
Fig. 1-1 shows the side view of the suction unit in accordance with the principles of the present invention in dead status；
Fig. 1-2 shows the cross-sectional view of the suction unit of Fig. 1-1；
Fig. 1-3 shows the side view of the suction unit of Fig. 1-1 in accordance with the principles of the present invention being active；
Fig. 2-1 shows the side view of the needle actuator of the suction unit of Fig. 1-1 in accordance with the principles of the present invention；
Fig. 2-2 shows the close-up view of a part of the needle actuator of Fig. 2-1；
Fig. 3-1 shows the side view of the shank body of the suction unit of Fig. 1-1 in accordance with the principles of the present invention；
Fig. 3-2 shows the cross-sectional view of the shank body of Fig. 3-1；And
Fig. 3-3 shows the cross-sectional view of a part of the shank body of Fig. 3-1 and Fig. 3-2.
Specific embodiment
It is described below substantially exemplary only, it is no intended to limit the disclosure and its application or purposes.
Fig. 1-1 and Fig. 1-2 shows the example needle suction unit 20 in rest position (for example, aspirating through bronchus needle
(TBNA) device), and Fig. 1-3 shows the device 20 in activated positon.Device 20 includes shank body 26, needle actuator
28, stylet knob 30 and Rule component 32.Shank body 26 is attached to the proximal end of casing 34.Needle actuator 28 wraps
Include the shaft portion 36 for being connected to handle portion 38.Needle actuator 28 is received and is attached to the proximal end of needle 40.Stylet knob 30
It is attached to the proximal end of stylet 46.Stylet knob 30 is rotatably received into the proximal end of Rule component 32.Rule
The distal end of component 32 is attached to the cavity of the handle portion 38 of needle actuator 28.
In rest position, the distal end of needle 40 retracts in casing 34 (Fig. 1-2).In activated positon, the distal side of needle 40
End exposure exceeds the distal end (Fig. 1-3) of casing 34.
As shown in Figs. 1-2, shaft portion 36 is slidably received in the cavity (that is, lumen) of shank body 26.In shank
At least part of ring-shaped groove 52 at the proximal end of the cavity of main body 26 to receive O-ring 50.O-ring 50 keeps axle portion
36 are divided not to be readily removable from shank body 26.The interactive operation of each part of device 20 is described in greater detail below.
As shown in Fig. 2-1 and Fig. 2-2, the shaft portion 36 of needle actuator 28 includes distal section 58, centre portion 62 and close
Lateral areas section 60.Distal section 58 and centre portion 62 are separated by distal annual groove 54.Centre portion 62 and proximal section 60 by
Nearside ring-shaped groove 56 separates.The outer diameter of distal section 58 is roughly the same with the internal diameter of the cavity of shank body 26.As component
A part, shaft portion 36 is inserted into the cavity of shank body 26.Distal section 58 is forced past O-ring 50, until O
Shape ring 50 is placed in distal annual groove 54.At this position, device 20 is ready for operating, wherein the distal side of needle 40
Distal end of the end adjacent to casing 34.O-ring 50 prevents the distal section 58 of needle actuator 28 by complete from shank body 26
It pulls out.
User starts needle activation in the following manner: apply distal force in the handle portion 38 of needle actuator 28, thus
O-ring 50 is set to pop up from distal annual groove 54 and slide along shaft portion 36, until O-ring 50 " spring " enters the position of end
(for example, nearside ring-shaped groove 56), this hour hand extend (for example, about 20mm) completely from casing 34.
Slope 66 is located at from the proximal of distal annual groove 54 to the predetermined position along shaft portion 36 proximally.Tiltedly
Proximal end of the outer diameter 64 on slope 66 from the proximal of distal annual groove 54 to slope 66 reduces.Nearside positioned at slope 66
Shaft portion 36 between end and nearside ring-shaped groove 56 has substantially constant diameter value.The distal end on slope 66 it is straight
Diameter value is selected to provide the sense of hearing to the operator when operator applies initial force to needle actuator 28 in a distal direction
And/or touch feedback.Slope 66 provides relatively unexpected and apparent activating force and retraction more smooth than activating force and subtle
Asymmetric power between power is poor.
Distal section 60 can have the diameter value of the non-ramp portion greater than centre portion 62.It is arranged to nearside annular ditch
O-ring 50 in slot 56 helps needle actuator 28 being maintained at complete distal position.Device 20 can be in no distal section 60
Or it is implemented in the case where distal annual groove 54.
In one embodiment, distal annual groove 54 is slightly deeper than nearside ring-shaped groove 56.This helps to maintain needle 40
It is locked in retraction position, until the activation of doctor's starting occurs.Distal annual groove 54 can flank oblique on proximal side
Face and the more sharp wider end on distal side.The broad side contacted with O-ring 50 prevents actuator by from shank master
Body 26 is completely pulled out.
The other shapes and size for device 20, including intermediate ramp or recess (divot) can be used, used to change
The activating force and feeling of period.For example, the recess or protuberance of the middle point between zero activation and complete activation can be used for
Doctor provides the feedback of the position about the intermediate point.
As shown in figure 3-1, figure 3-2 and figure 3-3, barb 44 is located at the distal end of shank body 26.Barb 44 includes
Distal side cavity 70 and nearside cavity 72.Nearside cavity 72 has the internal diameter smaller than distal side cavity 70, but still sufficiently large with slidably
Receive needle 40 in ground.The size of distal side cavity 70 is set to receive the proximal end of casing 34 until shelf, the shelf is due to distal side
Diameter difference between cavity 70 and nearside cavity 72 and formed.Barb 44 includes tapered distal end, the tapered distal side
End proximally extends, and flange 74 is formed at the substantially half of the length in barb 44.The axis of barb 44 has from tapered
Distal end to shank body 26 distal end constant outer diameter.Flange 74 allows to mitigate strain the bigger viscous of lining 42
Attached power.
After casing 34 has been inserted into distal side cavity 70, strain is mitigated into lining 42 and pulls or be applied to casing 34 and barb
44 tops.If strain mitigates lining 42 and at least partly formed by heat-shrinkage material, apply heat to thereon, to make
It shrinks and applies radial force to casing 34 and barb 44.Heat-shrinkage material may include adhesive on its interior surface, with
Allow that there is bigger adhesion strength between each part.It can also hot activation this adhesive.
A. a kind of medical device, comprising: needle, the needle set have distal end and proximal end；Needle actuator, the needle actuator
It include: actuator section, actuator region section is located at the proximal end of needle actuator；Axis section, the axis section have distal side
End and proximal end, the proximal end of the axis section are connected to actuator section, which includes: the first section, this
One section has first external diameter value；Second section, second section include a part with outer diameter, and the outer diameter is from second external diameter
Value is distad transitioned into third outer diameter value, and first external diameter value and third outer diameter value are greater than second external diameter value；With first annular groove,
The first annular groove is between the first section and the second section；And lumen, the lumen are located at actuator section or axis area
In one of section, the lumen is configured as receiving the proximal end of needle securely；Casing, the casing have distal end and
Proximal end, the casing include the lumen for being configured as receiving needle；And shank body, the shank body have distal end and
The distal end of proximal end, the shank body is connected to the proximal end of casing, which includes: lumen；
B. the medical device according to A, wherein shank body further include: ring-shaped groove, the ring-shaped groove is in shank master
In the cavity of body；And O-ring, the O-ring are at least partly received by the ring-shaped groove of shank body.
C. the medical device according to B, wherein the internal diameter of O-ring is less than first external diameter value.
D. the medical device according to any one of A to C, axis section further include the second ring-shaped groove, this second
Ring-shaped groove is between the second section and actuator section.
E. the medical device according to D, wherein first annular groove is than the second annular ditch groove depth.
F. the medical device according to any one of D or E, axis section further include third section, the third section
Between the second ring-shaped groove and actuator section, third section has the 4th outer diameter value, and the 4th outer diameter value is greater than outside second
Diameter value.
G. the medical device according to any one of B to F, wherein when medical device is in dead status, O-ring quilt
It is placed in first annular groove.
H. the medical device according to any one of D or F, wherein when medical device is active, O-ring quilt
It is placed in the second ring-shaped groove.
I. the medical device according to any one of A to H, wherein shank body further includes port, which is configured
For the proximal end for receiving sheath in the cavity, from shank body, distad protrusion, the internal diameter of the cavity are greater than shank for the port
The internal diameter of the cavity of main body.
J. the medical device according to I further includes attachment device, the attachment device be configured as port and sheath it
Between apply attachment forces.
K. the medical device according to L, wherein attachment device includes heat-shrinkage material.
L. a kind of handle device, comprising: needle actuator, the needle actuator include: actuator section, the actuator region section
At the proximal end of needle actuator；Axis section, the axis section have distal end and proximal end, the proximal end of the axis section
Portion is connected to actuator section, which includes: the first section, which has first external diameter value；Second section, should
Second section includes a part with outer diameter, which is distad transitioned into third outer diameter value from second external diameter value, outside first
Diameter value and third outer diameter value are greater than second external diameter value；With first annular groove, which is located at the first section and
Between two sections；And lumen, the lumen are located in one of actuator section or axis section, which is configured as securely
The proximal end of ground receiving needle；And shank body, the shank body have distal end and proximal end, the shank body
Distal end is connected to the distal end of casing, which includes lumen.
M. the handle device according to L, wherein shank body further include: ring-shaped groove, the ring-shaped groove is in shank master
In the cavity of body；And O-ring, the O-ring are at least partly received by the ring-shaped groove of shank body.
N. the handle device according to M, wherein the internal diameter of O-ring is less than first external diameter value.
O. the handle device according to any one of L to N, axis section further include the second ring-shaped groove, this second
Ring-shaped groove is between the second section and actuator section.
P. the handle device according to O, wherein first annular groove is than the second annular ditch groove depth.
Q. the handle device according to any one of L to P, wherein when medical device is in dead status, O-ring quilt
It is placed in first annular groove.
R. the handle device according to any one of O or P, wherein when medical device is active, O-ring quilt
It is placed in the second ring-shaped groove.
S. the handle device according to any one of O or P, axis section further include third section, the third section
Between the second ring-shaped groove and actuator section, third section has the 4th outer diameter value, and the 4th outer diameter value is greater than outside second
Diameter value.
T. the handle device according to any one of L to S, further includes: attachment device, the attachment device are connected to actuating
The proximal end of device section；And stylet knob, the stylet knob are rotatably received by attachment device, stylet rotation
Button is configured as receiving the proximal end of stylet.
Description of the invention is substantially exemplary only, and should be comprised in this without departing substantially from the variant of present subject matter
In the range of invention.These variants are not to be regarded as a departure from the spirit and scope of the invention.
Claims (according to the 19th article of modification of treaty)
1. a kind of medical device, comprising:
Needle, the needle set have distal end and proximal end；
Needle actuator, the needle actuator include:
Actuator section, the actuator region section are located at the proximal end of the needle actuator；
Axis section, the axis section have distal end and proximal end, and the proximal end of the axis section is connected to institute
Actuator section is stated, the axis section includes:
First section, first section have first external diameter value；
Second section, second section include a part with outer diameter, and the outer diameter is from the distad transition of second external diameter value
To third outer diameter value, the first external diameter value and the third outer diameter value are greater than the second external diameter value；With
First annular groove, the first annular groove is between first section and second section；With
Lumen, the lumen are located in one of the actuator section or the axis section, and the lumen is configured as jail
Admittedly receive the proximal end of the needle；
Casing, described sleeve pipe have distal end and proximal end, and described sleeve pipe includes lumen, and the lumen is configured as receiving
The needle；With
Shank body, the shank body have distal end and proximal end, and the distal end of the shank body joins
It is connected to the proximal end of described sleeve pipe, the shank body includes:
Lumen；
Ring-shaped groove, the ring-shaped groove are located in the lumen of the shank body；With
O-ring, the O-ring are at least partly received by the ring-shaped groove of the shank body.
2. medical device according to claim 1, wherein the internal diameter of the O-ring is less than the first external diameter value.
3. medical device according to any one of claim 1 to 2, wherein the axis section further includes the second annular ditch
Slot, second ring-shaped groove is between second section and the actuator section.
4. medical device according to claim 3, wherein the first annular groove is than the second annular ditch groove depth.
5. medical device according to claim 3 or 4, wherein the axis section further includes third section, the third area
Section is positioned at second ring-shaped groove and the actuator section between, and the third section is with the 4th outer diameter value, and described the
Four outer diameter values are greater than the second external diameter value.
6. medical device according to any one of claim 1 to 5, wherein when the medical device is in dead status
When, the O-ring is placed in the first annular groove.
7. medical device according to claim 3 or 4, wherein when the medical device is active, the O shape
Ring is placed in second ring-shaped groove.
8. medical device according to any one of claim 1 to 7, wherein the shank body further includes port, it is described
Port is configured as receiving the proximal end of the sheath in the cavity, and the port is distad dashed forward from the shank body
It rises, the internal diameter of the cavity is greater than the internal diameter of the cavity of the shank body.
9. medical device according to claim 8 further includes attachment device, the attachment device is configured as at the end
Apply attachment forces between mouth and the sheath.
10. medical device according to claim 9, wherein the attachment device includes heat-shrinkage material.
Claims (20)
1. a kind of medical device, comprising:
Needle, the needle set have distal end and proximal end；
Needle actuator, the needle actuator include:
Actuator section, the actuator region section are located at the proximal end of the needle actuator；
Axis section, the axis section have distal end and proximal end, and the proximal end of the axis section is connected to institute
Actuator section is stated, the axis section includes:
First section, first section have first external diameter value；
Second section, second section include a part with outer diameter, and the outer diameter is from the distad transition of second external diameter value
To third outer diameter value, the first external diameter value and the third outer diameter value are greater than the second external diameter value；With
First annular groove, the first annular groove is between first section and second section；With
Lumen, the lumen are located in one of the actuator section or the axis section, and the lumen is configured as jail
Admittedly receive the proximal end of the needle；
Casing, described sleeve pipe have distal end and proximal end, and described sleeve pipe includes lumen, and the lumen is configured as receiving
The needle；With
Shank body, the shank body have distal end and proximal end, and the distal end of the shank body joins
It is connected to the proximal end of described sleeve pipe, the shank body includes lumen.
2. medical device according to claim 1, wherein the shank body further include:
Ring-shaped groove, the ring-shaped groove are located in the lumen of the shank body；With
O-ring, the O-ring are at least partly received by the ring-shaped groove of the shank body.
3. medical device according to claim 2, wherein the internal diameter of the O-ring is less than the first external diameter value.
4. medical device according to any one of claim 1 to 3, wherein the axis section further includes the second annular ditch
Slot, second ring-shaped groove is between second section and the actuator section.
5. medical device according to claim 4, wherein the first annular groove is than the second annular ditch groove depth.
6. medical device according to claim 4 or 5, wherein the axis section further includes third section, the third area
Section is positioned at second ring-shaped groove and the actuator section between, and the third section is with the 4th outer diameter value, and described the
Four outer diameter values are greater than the second external diameter value.
7. the medical device according to any one of claim 2 to 6, wherein when the medical device is in dead status
When, the O-ring is placed in the first annular groove.
8. medical device according to claim 4 or 5, wherein when the medical device is active, the O shape
Ring is placed in second ring-shaped groove.
9. medical device according to any one of claim 1 to 8, wherein the shank body further includes port, it is described
Port is configured as receiving the proximal end of the sheath in the cavity, and the port is distad dashed forward from the shank body
It rises, the internal diameter of the cavity is greater than the internal diameter of the cavity of the shank body.
10. medical device according to claim 9 further includes attachment device, the attachment device is configured as described
Apply attachment forces between port and the sheath.
11. medical device according to claim 10, wherein the attachment device includes heat-shrinkage material.
12. a kind of handle device, comprising:
Needle actuator, the needle actuator include:
Actuator section, the actuator region section are located at the proximal end of the needle actuator；
Axis section, the axis section have distal end and proximal end, and the proximal end of the axis section is connected to institute
Actuator section is stated, the axis section includes:
First section, first section have first external diameter value；
Second section, second section include a part with outer diameter, and the outer diameter is from the distad transition of second external diameter value
To third outer diameter value, the first external diameter value and the third outer diameter value are greater than the second external diameter value；With
First annular groove, the first annular groove is between first section and second section；With
Lumen, the lumen are located in one of the actuator section or the axis section, and the lumen is configured as jail
Admittedly receive the proximal end of needle；With
Shank body, the shank body have distal end and proximal end, and the distal end of the shank body joins
It is connected to the distal end of casing, the shank body includes lumen.
13. handle device according to claim 12, wherein the shank body further include:
Ring-shaped groove, the ring-shaped groove are located in the lumen of the shank body；With
O-ring, the O-ring are at least partly received by the ring-shaped groove of the shank body.
14. handle device according to claim 13, wherein the internal diameter of the O-ring is less than the first external diameter value.
15. handle device described in any one of 2 to 14 according to claim 1, wherein the axis section further includes the second annular
Groove, second ring-shaped groove is between second section and the actuator section.
16. handle device according to claim 15, wherein the first annular groove is than the second annular ditch groove depth.
17. handle device described in any one of 2 to 16 according to claim 1, wherein deactivating shape when the medical device is in
When state, the O-ring is placed in the first annular groove.
18. handle device according to claim 15 or 16, wherein when the medical device is active, it is described
O-ring is placed in second ring-shaped groove.
19. handle device according to claim 15 or 16, wherein the axis section further includes third section, the third
For section between second ring-shaped groove and the actuator section, the third section has the 4th outer diameter value, described
4th outer diameter value is greater than the second external diameter value.
20. handle device described in any one of 2 to 19 according to claim 1, further includes:
Attachment device, the attachment device are connected to the proximal end of the actuator section；With
Stylet knob, the stylet knob are rotatably received by the attachment device, and the stylet knob is configured
For the proximal end for receiving stylet.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2016/042348 WO2018013127A1 (en) | 2016-07-14 | 2016-07-14 | Needle handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109475353A true CN109475353A (en) | 2019-03-15 |
| CN109475353B CN109475353B (en) | 2021-12-24 |
Family
ID=56550399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680087672.8A Active CN109475353B (en) | 2016-07-14 | 2016-07-14 | Needle handle |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6818864B2 (en) |
| CN (1) | CN109475353B (en) |
| DE (1) | DE112016007061T5 (en) |
| GB (1) | GB2566231B (en) |
| WO (1) | WO2018013127A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11039819B2 (en) * | 2017-08-31 | 2021-06-22 | Gyrus Acmi, Inc. | Needle handle |
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- 2016-07-14 WO PCT/US2016/042348 patent/WO2018013127A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| DE112016007061T5 (en) | 2019-03-28 |
| GB2566231A (en) | 2019-03-06 |
| JP2019527095A (en) | 2019-09-26 |
| JP6818864B2 (en) | 2021-01-20 |
| CN109475353B (en) | 2021-12-24 |
| GB201900309D0 (en) | 2019-02-27 |
| GB2566231B (en) | 2022-04-20 |
| WO2018013127A1 (en) | 2018-01-18 |
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