CN105361922B - A kind of medical adjustable bending tissue removes apparatus - Google Patents

A kind of medical adjustable bending tissue removes apparatus Download PDF

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Publication number
CN105361922B
CN105361922B CN201510929159.6A CN201510929159A CN105361922B CN 105361922 B CN105361922 B CN 105361922B CN 201510929159 A CN201510929159 A CN 201510929159A CN 105361922 B CN105361922 B CN 105361922B
Authority
CN
China
Prior art keywords
adjustable bending
tissue
unit
regulation
shaft
Prior art date
Application number
CN201510929159.6A
Other languages
Chinese (zh)
Other versions
CN105361922A (en
Inventor
吕世文
毛克亚
邓双
汪宇
Original Assignee
宁波华科润生物科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波华科润生物科技有限公司 filed Critical 宁波华科润生物科技有限公司
Priority to CN201510929159.6A priority Critical patent/CN105361922B/en
Publication of CN105361922A publication Critical patent/CN105361922A/en
Application granted granted Critical
Publication of CN105361922B publication Critical patent/CN105361922B/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/162Chucks or tool parts which are to be held in a chuck
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1622Drill handpieces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1631Special drive shafts, e.g. flexible shafts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1633Sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B2017/1602Mills
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1644Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans using fluid other than turbine drive fluid
    • A61B2017/1651Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans using fluid other than turbine drive fluid for cooling

Abstract

The present invention relates to a kind of medical adjustable bending tissue to remove apparatus, head is removed including tissue, adjustable bending unit, shaft and regulation and control straight tube, adjustable bending unit includes straightway and angle section is fixed made of elastic material, straightway is fixedly connected with regulation and control handle, shaft distal end removes head with tissue and is connected, near-end is equipped with connector, the part that shaft is located at fixed angle section is made of some sections of flexible axles, connected between adjacent two sections of flexible axles by stress releaser, stress releaser includes multiple connection units, the connection unit at stress releaser both ends connects adjacent flexible axle, the flexible connection that can be achieved that rotary motion is transmitted along the axis of connection unit is provided between two adjacent connection units, regulation and control straight tube is sleeved on outside adjustable bending unit, it is axially moveable by operating regulation and control handle control regulation and control straight tube.Shaft of the present invention transmits torque by multiple stress releasers, eliminates curved alternate stress, avoids flexible axle that fatigue fracture occurs, and improves the reliability of apparatus.

Description

A kind of medical adjustable bending tissue removes apparatus

Technical field

The present invention relates to spinal stenosis decompression equipment technology field, more particularly to a kind of medical adjustable bending tissue remover Tool.

Background technology

With advancing age, hyperplasia and degeneration can often occur for tissue, so that cause canalis spinalis or nerve root canal narrow, Cause cauda equina nerve or nerve root to be oppressed, cause that patient is tingle, pain, it is serious or even cause people's paralysis.In spinal surgery Need that the tissue of patient's hyperplasia either degeneration is polished or cut in operation, reduce compressing of the tissue to nerve, so that Alleviate and eliminate its influence brought.

In the prior art, for example, 2014/041540 A1 of patent publication No. WO international patent application, using power hand Handle directly drives bistrique rotation and is ground, and the work sheath of drive shaft outer layer is uncontrollable stationary curved shape.

Due to often needing to be ground multiple operative sites in a spinal surgery, and these positions are all relatively deep, fixed shape The work sheath of shape is difficult to be deep into multiple appointed parts by a Minimally Invasive Surgery passage.Particularly if grinding position is outer Shape is more complicated, then is difficult that control bistrique adaptation shape is ground.Underaction is convenient when in use for the apparatus, procedure efficiency It is relatively low.And the connection of its bending section is connected using simple flexible axle, in high-speed rotation, flexible axle is easy to fatigue, occurs disconnected Split, cause the failure of operation.

In the prior art, for example, 103767759 A of patent publication No. CN Chinese patent application, which is a kind of Flexible bistrique, by controlling bistrique to carry out pitching motion, to adapt to the change at grinding position.

The bistrique of the structure is attached transmission using hinge arrangement, and mechanism and manufacture craft are all complex, and cuts with scissors This rigid connection structure of chain is highly unstable, and phenomenon of rupture easily occurs during high-speed drive, causes operative failure;Separately The integral diameter of outer cutter is also larger, and requires grinding knife tool entire outer diameter smaller in spinal operation to adapt to different Surgeries Position;And the end of work sheath is flat mouth, at work without protective device, when being cut off to affected part easily to around Tissue or nerve cause to damage.

In the prior art, for example, 2014/0236165 A1 of patent publication No. US U.S. Patent application, which is A kind of flexible bistrique, distally to be flexible, by fairlead guiding distally towards required direction deviation.

Structure distal end is flexibility, and insufficient rigidity, when running into harder tissue, is distally difficult to keep the shape of script, Cause cutting effect poor, in some instances it may even be possible to which, there is a phenomenon where whipping, the security and validity of apparatus are poor.

The content of the invention

In view of this, the object of the present invention is to provide a kind of medical adjustable bending tissue to remove apparatus, in surgical procedure, energy Enough adjust the angle of bistrique, multiple operative sites can be deep into and for different operations by an operation path Position has well adapting to property, so as to improve procedure efficiency;Multistage flexible axle and stress release are used in the part of corresponding bent angle The connection of device, the concentration of stress is eliminated by stress releaser, avoids flexible axle that fatigue fracture occurs.

The purpose of the present invention is what is be achieved through the following technical solutions:

A kind of medical adjustable bending tissue removes apparatus, including tissue removes head, adjustable bending unit, shaft and regulation and control straight tube, The adjustable bending unit includes the straightway of proximal part and the fixation angle section of distal portions, the near-end and tune of the straightway Control handle is fixedly connected, and the fixed angle section is made of elastic material, and the shaft is installed in adjustable bending unit, its distal end Head is removed with tissue to be connected, near-end is provided with the connector that with motor output shaft can be connected, and the shaft is located at fixed angle section Part be made of some sections of flexible axles, connected between adjacent two sections of flexible axles by stress releaser, the stress releaser Including multiple connection units, the connection unit positioned at the stress releaser both ends is connected with adjacent two flexible axles respectively, adjacent Two connection units between be provided with can be achieved along the connection unit axis transmit rotary motion flexible connection, The regulation and control straight tube is sleeved on outside the adjustable bending unit, and the regulation and control straight tube near-end is connected with regulation and control handle, by operating The handle control regulation and control straight tube is axially moveable.

The purpose of the present invention can also further be realized by following technical solution:

Preferably, be equipped with the field of conjugate action on the connection unit, adjacent two connection units by the field of conjugate action it Between engaging into flexible connection.

Preferably, some convex falcons and groove are carried on the field of conjugate action, the convex falcon and groove match each other, described The end of convex falcon is equipped with limiting section, and the iInstalling bayonet to match with the limiting section is equipped with the bottom of the recess.

Preferably, the adjustable bending unit distal end is equipped with protective cover, and the tissue removes head and is arranged on the protective cover Side.

Preferably, the adjustable bending tissue removes apparatus and further includes rotary unit, and the protective cover is arranged on rotary unit Distal end, the rotary unit can be along the adjustable bending unit middle shaft rotation.

Preferably, supporting part is equipped with the distal end of the adjustable bending unit, described group of installation is equipped with the supporting part The mounting hole for removing head is knitted, the axis of the mounting hole is with fixing the distal end bias of angle section or overlapping.

Preferably, the tissue, which is removed in apparatus, is equipped with pouring liquid passage.

Preferably, the pouring liquid passage is arranged between shaft and adjustable bending unit.

Preferably, the pouring liquid passage is arranged on inside shaft.

Preferably, the straightway is rigid pipe, and the distal end of the straightway and the near-end of the fixed angle section are fixed Connection.

Preferably, the center section of the fixed angle section is the arc-shaped laminated structure in cross section.

Preferably, the laminated structure is arranged on the inner side in the adjustable bending unit bending direction.

Preferably, the laminated structure is arranged on the outside in the adjustable bending unit bending direction, the adjustable bending list Protection sleeve pipe is cased with outside first, the protection sleeve pipe is bent with the bending of the fixed angle section.

Preferably, the flexible axle by multi-layer wire tightly around into each layer of silk is formed by some silk spiral windings, and phase The winding direction of adjacent silk layer is opposite.

Compared with the existing technology, the beneficial effects are mainly as follows:

1st, the present invention realizes the controllable steering that tissue removes head, tissue is removed head and turns as requested, adapts to The tissue of various complex surface situations, makes surgical procedure more convenient.

2nd, the connection of shaft of the invention in the part of corresponding bent angle using multistage flexible axle and stress releaser, will be original curved The concentration alternate stress that the flexible axle stage casing of angle part is born is dispersed to multistage flexible axle, and the collection of stress is eliminated by stress releaser In, avoid flexible axle that fatigue fracture occurs, improve the reliability of apparatus.

3rd, present invention back side at cutting is provided with protective cover, to prevent from bistrique to be resected to being not required to the tissue of excision for example refreshing Through;And protective cover can rotate, the protection demand of the various aspects of different tissues is so adapted to.

4th, supporting part of the invention forms revolute pair with bistrique tail end and coordinates, and the contact surface of revolute pair cooperation with it is described Adjustable bending unit is not coaxial, the grinding surface of bistrique is higher than the periphery of the adjustable bending unit, be more easy to excision group Knit.

Brief description of the drawings

Fig. 1 is the structure diagram of the present invention.

Fig. 2 is that the fixation angle section section of laminated structure of the present invention on the inside of the adjustable bending unit bending direction is put Big schematic diagram.

Fig. 3 is that the fixation angle section structure of laminated structure of the present invention on the inside of the adjustable bending unit bending direction is shown It is intended to.

Fig. 4 is that the fixation angle section section of laminated structure of the present invention on the outside of the adjustable bending unit bending direction is put Big schematic diagram.

Fig. 5 is the diagrammatic cross-section of the handle portion of the present invention.

Fig. 6 is the structure diagram of the stress releaser of the present invention.

Fig. 7 is the stress releaser unfolded state schematic diagram of the present invention.

Fig. 8 is that the convex falcon end of stress releaser of the present invention carries the structure diagram of limiting section.

Fig. 9 is that the convex falcon end of stress releaser of the present invention carries the unfolded state schematic diagram of limiting section.

Embodiment

For the objects, technical solutions and advantages of the present invention are more clearly understood, develop simultaneously embodiment referring to the drawings, right The present invention is further described.

Near-end of the present invention refers to that, close to one end of patient, the distal end refers to one end away from patient.

As shown in Figure 1, a kind of medical adjustable bending tissue removes apparatus, including tissue removes first 1, adjustable bending unit 11, turns Axis 12 and regulation and control straight tube 31, the adjustable bending unit 11 include the straightway 18 of proximal part and the fixation angle section of distal portions 13, the near-end of the straightway 18 is fixedly connected with regulation and control handle 35, and the fixed angle section 13 is made of elastic material, described Shaft 12 is installed in adjustable bending unit 11, its distal end removes first 1 with tissue and is connected, and near-end is provided with can be with motor output shaft phase Connector even, the part that the shaft 12 is located at fixed angle section 13 are made of some sections of flexible axles, adjacent two sections of flexible axles Between connected by stress releaser 25, the stress releaser 25 includes multiple connection units, positioned at the stress releaser The connection unit at 25 both ends is connected with adjacent two flexible axles respectively, is provided between adjacent two connection units achievable The flexible connection of rotary motion is transmitted along the axis of the connection unit, the regulation and control straight tube 31 is sleeved on the adjustable bending unit 11 Outside, regulation and control 31 near-end of straight tube is connected with regulation and control handle, and the regulation and control straight tube 31 is controlled vertically by operating regulation and control handle It is mobile.

Since elastic material price is more expensive than rigid material, in order to cost-effective, the straightway 18 can be firm Property pipe, the distal end of the straightway 18 is fixedly connected with the near-end of the fixed angle section 13.

The fixed angle section 13 has a variety of implementations.

As shown in Figures 2 and 3, the center section of the fixed angle section 13 is the arc-shaped laminated structure in cross section, described Laminated structure is arranged on the inner side of 11 bending direction of adjustable bending unit, and to prevent when removing tissue, foreign matter passes through solid The gap for determining angle section 13 enters inside adjustable bending unit 11, influences the use of shaft 12 and apparatus, can set protection sleeve pipe 24, Its outside diameter is matched with the internal diameter of fixed angle section 13, so as to close fixed angle section 13.

As shown in figure 4, the laminated structure is arranged on the outside of 11 bending direction of adjustable bending unit, the adjustable bending list Protection sleeve pipe 24 is cased with outside member 11, with the fixed angle section 13 of closing, the protection sleeve pipe 24 can be synchronous curved with fixed angle section 13 It is bent.

As shown in Fig. 2, the distal end of the fixed angle section 13 of the adjustable bending unit 11 is equipped with supporting part 17, described Supporting part 17 is equipped with the mounting hole that installation tissue removes first 1, the axis of the mounting hole and the distal shaft of fixed angle section 13 Line overlaps.For more preferable resection organization, the axis of the mounting hole and the distal end eccentric axis of fixed angle section 13, described group The cutting edge for removing first 1 is knitted along eccentric direction lateral protrusion so that the grinding surface that tissue removes head is outer higher than adjustable bending unit 11 Disc, is more easy to resection organization.

As shown in Figures 2 and 3, it is adjustable to prevent the tissue such as nerve for being not required to excision to be damaged in resection organization Curved unit distal end is equipped with protective cover, and the circumferential protection width of protective cover 22 is less than or equal to the half that tissue removes first 1 girth.

In order to adapt to different organizational environments, protective cover 22 may be designed as rotary structure, as shown in Figure 1, described adjustable Curved tissue removes apparatus and further includes rotary unit 27, and the protective cover 22 is arranged on the distal end of rotary unit, the rotary unit 27 can be fixedly connected along the middle shaft rotation of adjustable bending unit 11,27 near-end of rotary unit with rotation handle 36.

It is connected as shown in Fig. 2, 12 distal end of shaft removes first 1 with tissue, the shaft 12 is located at fixed angle section 13 Part be formed by connecting by some sections of flexible axles, connected between adjacent two sections of flexible axles by stress releaser 25.The flexible axle By multi-layer wire tightly around into each layer of silk is formed by some silk spiral windings, and the winding direction of adjacent filaments layer is opposite.

The stress releaser 25 can have following constituted mode.

As shown in Figure 6 and Figure 7, the stress releaser 25 includes multiple connection units, positioned at the stress releaser 25 The connection unit at both ends is connected with adjacent two flexible axles respectively, and adjacent connection unit intermeshes, and is set on the face of the engagement It is equipped with the uniformly distributed convex falcon of some annulars, the gap between the convex falcon matches with the convex falcon.

As shown in Figure 8 and Figure 9, for convenience of assembling, be equipped with limiting section in the end of the convex falcon, between the convex falcon between The bottom of gap is equipped with the iInstalling bayonet to match with limiting section so that the connection unit of stress releaser 25 keeps connecting in natural situation The state being connected together.

As shown in figure 5,12 near-end of shaft is provided with the connector 26 and motor 21 that can be connected with motor output shaft Connection, which can be the standard connector of defined in national standard YY-1012.

For cools tissue, prevent from overheating at grinding, the tissue, which is removed in apparatus, is equipped with pouring liquid passage 15.Such as figure Shown in 5, there is gap between adjustable bending unit 11 and shaft 12, form pouring liquid passage 15, cooling water passes through oral siphon 23 Into water tank 20, subsequently into perfusion channel 15, and by the guiding of protective cover 22, eventually arrive at tissue and remove at first 1 grinding, Cools tissue.

The pouring liquid passage 15 can also be arranged on inside shaft 12, and shaft 12 is hollow-core construction.

The regulation and control straight tube 31 is sleeved on outside shaft 12 and adjustable bending unit 11, and near-end is connected with regulation and control handle, in order to Regulation and control straight tube 31 is preferably adjusted, usually all telescoping mechanism can be set on regulation and control handle.As shown in figure 5, set on the handle The telescoping mechanism put includes the stud 33 and swivel nut 34 to match, and the swivel nut 34 is installed on handle and between handle Connect in revolute pair, connected between the stud 33 and handle in prismatic pair, the middle part of stud 33 is provided with mounting hole to pacify Adjustment control straight tube 31.The near-end of the regulation and control straight tube 31 is fixedly connected with stud 33, and stud 33 coordinates with swivel nut 34, when turn spiral shell When covering 34, stud 33 slides axially in guide rail, so as to drive regulation and control straight tube axial movement.

In practical applications, operator controls regulation and control straight tube 31 to be relatively moved with adjustable bending unit 11 by telescoping mechanism, Adjust fixed angle section 13 and stretch out the distance of regulation and control straight tube 31, so that the tissue changed positioned at 11 distal end of adjustable bending unit removes head Angle between 1 and straightway 18, makes tissue remove first 1 and controllable steering is realized in surgical procedure, adapt to the surgical rings of complexity Border.

Finally it should be noted that the foregoing is merely preferred embodiment of the invention, this is not limited to Invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., should be included in this hair Within bright protection domain.

Claims (10)

1. a kind of medical adjustable bending tissue removes apparatus, including tissue remove head (1), adjustable bending unit (11), shaft (12) and Regulate and control straight tube (31), it is characterised in that the adjustable bending unit (11) includes the straightway (18) and distal portions of proximal part Fixation angle section (13), the near-end of the straightway (18) of the proximal part is fixedly connected with regulation and control handle (35), described solid Determine angle section (13) to be made of elastic material, the shaft (12) is installed in adjustable bending unit (11), the shaft (12) Distal end removes head (1) with tissue and is connected, and the near-end of the shaft (12) is provided with the connector that can be connected with motor output shaft, institute State shaft (12) to be made of some sections of flexible axles positioned at the part of fixed angle section (13), pass through between adjacent two sections of flexible axles Stress releaser (25) connects, and the stress releaser (25) includes multiple connection units, positioned at the stress releaser (25) The connection unit at both ends is connected with two sections of adjacent flexible axles respectively, and being provided between adjacent two connection units can Realize the flexible connection that rotary motion is transmitted along the axis of the connection unit, the regulation and control straight tube (31) is sleeved on the adjustable bending Outside, regulation and control straight tube (31) near-end is connected unit (11) with regulation and control handle, controls the regulation and control straight by operating regulation and control handle Pipe (31) is axially moveable.
2. a kind of medical adjustable bending tissue according to claim 1 removes apparatus, it is characterised in that the connection unit it It is equipped with the field of conjugate action, adjacent two connection units are by the engaging between the field of conjugate action into flexible connection.
3. a kind of medical adjustable bending tissue according to claim 2 removes apparatus, it is characterised in that on the field of conjugate action With some convex falcons and groove, the convex falcon and groove match each other, and limiting section are equipped with the end of the convex falcon, described recessed The bottom of groove is equipped with the iInstalling bayonet to match with the limiting section.
4. a kind of medical adjustable bending tissue according to claim 1 removes apparatus, it is characterised in that the adjustable bending unit Distal end is equipped with protective cover (22), and the tissue removes the side that head is arranged on the protective cover (22).
5. a kind of medical adjustable bending tissue according to claim 4 removes apparatus, it is characterised in that the adjustable bending tissue Remove apparatus and further include rotary unit, the protective cover (22) is arranged on the distal end of rotary unit, and the rotary unit can be along institute State adjustable bending unit middle shaft rotation.
6. a kind of medical adjustable bending tissue according to claim 1 removes apparatus, it is characterised in that in the adjustable bending list The distal end of first (11) is equipped with supporting part (17), is equipped with the supporting part (17) and installs the installation that the tissue removes head (1) Hole, the axis of the mounting hole is with fixing the distal end bias of angle section (13) or overlapping.
7. a kind of medical adjustable bending tissue according to claim 1 removes apparatus, it is characterised in that the tissue remover Pouring liquid passage (15) is equipped with tool.
8. a kind of medical adjustable bending tissue according to claim 1 removes apparatus, it is characterised in that the fixed angle section (13) center section is the arc-shaped laminated structure (19) in cross section.
9. a kind of medical adjustable bending tissue according to claim 8 removes apparatus, it is characterised in that the laminated structure (19) it is arranged on the inner side of adjustable bending unit (11) bending direction.
10. a kind of medical adjustable bending tissue according to claim 8 removes apparatus, it is characterised in that the laminated structure (19) outside of adjustable bending unit (11) bending direction is arranged on, protection sleeve pipe is cased with outside the adjustable bending unit (11) (24), the protection sleeve pipe (24) bends with the bending of the fixed angle section (13).
CN201510929159.6A 2015-12-15 2015-12-15 A kind of medical adjustable bending tissue removes apparatus CN105361922B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510929159.6A CN105361922B (en) 2015-12-15 2015-12-15 A kind of medical adjustable bending tissue removes apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510929159.6A CN105361922B (en) 2015-12-15 2015-12-15 A kind of medical adjustable bending tissue removes apparatus

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CN105361922A CN105361922A (en) 2016-03-02
CN105361922B true CN105361922B (en) 2018-05-04

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106821452A (en) * 2017-02-22 2017-06-13 四川大学华西医院 A kind of bone arcuate socket card punch

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CN102264307A (en) * 2008-12-12 2011-11-30 伊顿株式会社 Surgical instrument
CN102448387A (en) * 2009-05-29 2012-05-09 阿斯卡拉波股份有限公司 Surgical instrument
CN103281964A (en) * 2010-11-11 2013-09-04 科维蒂恩有限合伙公司 Flexible debulking catheters with imaging and methods of use and manufacture
CN104473687A (en) * 2014-12-03 2015-04-01 中国人民解放军第二军医大学 Bendable surgical instrument with pre-bending pipe structure

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Publication number Priority date Publication date Assignee Title
CN104768478B (en) * 2012-09-11 2018-04-10 卡尔维通医疗有限公司 tissue removal device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102264307A (en) * 2008-12-12 2011-11-30 伊顿株式会社 Surgical instrument
CN102448387A (en) * 2009-05-29 2012-05-09 阿斯卡拉波股份有限公司 Surgical instrument
CN103281964A (en) * 2010-11-11 2013-09-04 科维蒂恩有限合伙公司 Flexible debulking catheters with imaging and methods of use and manufacture
CN104473687A (en) * 2014-12-03 2015-04-01 中国人民解放军第二军医大学 Bendable surgical instrument with pre-bending pipe structure

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