JP2017148320A - Resin surgical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resin surgical instrument which promotes weight saving and cost reduction by being resinified while having a lighting function of lighting an operation field and an affected part, and making the entire instrument be sterilized to an extent sufficient to prevent infection disease or the like.SOLUTION: A resin surgical instrument includes: a resin insert member storage part; an operation function part extended from the tip of the insert member storage part; an airtight storage chamber provided in the insert member storage part and openable/closable by a cap member; and an insert member stored in the airtight storage chamber. The operation function part is formed of a transparent resin, the insert member incorporates a circuit board mounted with a light-emitting diode and an electric battery for supplying electricity to the circuit board, and a light guide path which extends passing through the transparent resin of the operation function part from the tip of the airtight storage chamber leads emission light from the light-emitting diode of the insert member to the tip part of the operation function part.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a resin surgical instrument, and in particular, a light source is built in a gripping part, a surgical function part is formed of a transparent resin, and light emitted from a light source built in the gripping part guides the transparent surgical function part. The surgical function unit emits light and illuminates at least a part of the surgical field.

  Conventionally, various surgical devices have been developed as surgical instruments for expanding or maintaining an incised part during an operation, and surgical instruments for expanding and maintaining a hole in a human body such as an ear nose during a medical examination. The vessel is known. Typical shapes include a scissors type, a funnel shape, a shape in which the interval between two limbs extending substantially vertically from a rod-shaped shaft portion is changed by sliding, and the like.

  Such a retractor is generally made of a sturdy metal, but it is made into a resin for weight reduction, or a lighting device is attached to improve the visibility of the surgical field or affected area, Various devices have been made (for example, see Patent Documents 1 to 3).

Utility Model Registration No. 3116529 JP 2005-58440 A Japanese Patent Laid-Open No. 5-220111

  A conventional surgical instrument is assumed to be used in an operating room of a hospital with a surgical environment. In the operating room of a hospital, there are abundant surgical instruments that can perform multiple sets of surgery according to the capacity of the hospital almost simultaneously. For surgical instruments that require sterilization, a sterilization facility necessary for reusing used surgical instruments or an operational system for requesting sterilization to an external contractor has been established.

  However, there are many scenes that require emergency surgery outside the hospital. In such scenes, it is difficult to prepare a favorable surgical environment for doctors with a variety of familiar conventional metal surgical instruments. There are many scenes where the advantages of surgical instruments with improved portability and the advantages of plastic surgical instruments that can be manufactured at low cost and can be stocked in large quantities are more important. Of course, even in hospitals, if a doctor accepts the feeling of using a surgical instrument made of resin, a surgical instrument made of resin will be a realistic option.

  In addition, when there are a large number of patients, it is desirable to use the sterilized surgical instrument described above for each patient in order to prevent infections, etc., but in the case of a conventional metal surgical instrument, a sterilized surgical instrument is used. Preparing a large number of instruments in advance is a heavy burden, and sterilizing each time at the site is a labor-intensive operation, and it is impractical to bring a large sterilizer into the site. In such a scene, if a surgical instrument made of resin that can withstand practical use can be prepared in advance and sterilized, the surgical environment can be greatly improved. Of course, even in a hospital, there is an option to use a surgical instrument made of resin in advance, without preparing an operation system for requesting sterilization from a sterilization facility or an outside contractor.

  In addition, in a scene where an emergency operation is required outside the hospital, it is assumed that the operation must be performed in an environment where lighting facilities are insufficient. In this case, it is conceivable to separately prepare an illumination instrument. However, it is not desirable for emergency surgery where human support is required for supporting and operating the illumination instrument and there is a high possibility that sufficient manpower cannot be secured. Of course, there may be cases where surgery must be performed in an environment where the lighting equipment does not function sufficiently even in the hospital, and if the surgical instrument has a lighting function in the first place, special lighting equipment will be installed in the hospital. The disposition itself may become unnecessary.

  In addition, as described above, various types of retractors with illumination functions for securing the visual field of the surgical field and affected area have been proposed, but they are guided by an optical fiber or the like from an external light source driven by an external power source. In many cases, lighting-related parts are likely to be in a non-sterile state, and it is practically difficult to sterilize each patient when using an external light source.

  In addition, when a power source or a light source is built in a surgical instrument, it is necessary to incorporate a power source or a light source for each surgical instrument in advance, and the merit of using the surgical instrument made of resin is reduced in terms of weight and cost.

  Furthermore, a method of using the power source or light source part as a detachable attachment and reusing it between a plurality of surgical instruments is also conceivable. In this case, as in the case of the optical fiber guiding the external light source described above, Since the attachment cannot be sterilized on site, infections and the like cannot be sufficiently prevented.

  The present invention has been made in view of the above-mentioned problems, and while promoting the lightening and cost reduction by providing a resin while having an illumination function for illuminating an operative field and an affected area, the entire device is used for preventing infectious diseases and the like. The object is to provide a plastic surgical instrument that is sterilized to a sufficient degree.

  The resin surgical instrument according to the present invention includes a resin-made insert member housing portion, a surgical function portion extending from the tip of the insert member housing portion, and a cap member that is provided in the insert member housing portion and can be opened and closed by a cap member. And an insert member accommodated in the sealed accommodation chamber, the surgical function portion is formed of a transparent resin, and the insert member is mounted on a circuit board on which a light emitting diode is mounted and the circuit board. And a light guide path that extends from the distal end of the sealed storage chamber through the transparent resin of the surgical function unit to guide the emitted light of the light emitting diode of the insert member to the distal end portion of the surgical function unit. This is a resin surgical instrument characterized by being illuminated.

  The resin surgical instrument configured as described above includes a battery and a circuit board on which a light emitting diode is mounted inside the insert member, and opens and closes the cap member of the insert member storage portion to open and close the insert member storage portion. The insert member itself can be taken in and out of the sealed housing chamber. Since the distal end of the sealed housing chamber is formed of a transparent resin and is continuously formed on the resin functional portion formed of the transparent resin, the emitted light from the distal end of the insert member is transmitted from the distal end of the sealed housing chamber to the surgical function portion. Light is guided to the distal end portion of the surgical function portion by a light guide path extending through the transparent resin. In other words, the insert member can be diverted between plastic surgical instruments, but the cap member seals the insert member in the sealed housing chamber so that the doctor does not touch it during surgery, and even if the insert member is diverted, infection is possible. There is no worry about problems such as illness. In other words, by sterilizing only a resin surgical instrument that does not contain a power source or light source except the insert member and sealing it in a resin bag, etc. It is possible to promote weight reduction and price reduction by using a resin while providing an illumination function for illuminating the affected area.

  One of the selective aspects of the present invention is a resin surgical instrument characterized in that, in the insert member, the whole or main part including the battery and the circuit board is hermetically held with a heat-dissipating resin. is there.

  The resin surgical instrument configured as described above can realize a resin surgical instrument in which the heat radiation from the battery or the circuit board is hard to go into the sealed housing chamber.

  In addition, scissors-type retractors, otolaryngological openers, fixed-type retractors, and the like can be considered as selective specific embodiments of the present invention. In the case of the scissors type retractor, the insert member accommodating portion is provided in the grip portion. In the case of an otolaryngology opener, an insert member accommodating portion is provided inside at least one of the gripping portions. In the case of a fixed retractor, the retractor has a linear shaft portion and two limb portions extending substantially perpendicularly from the shaft portion as the resin functional portion, and the two limb portions The shaft portion is configured to be slidable while maintaining a state in which at least one of them is oriented substantially perpendicular to the shaft portion, and has a fixing mechanism for fixing at an arbitrary sliding position on the shaft portion. The insert member accommodating portion is connected to the limb-like portion on the opposite side across the shaft portion.

  In addition, the resin-made surgical instrument demonstrated above includes various aspects, such as being implemented in the state integrated in another apparatus, or being implemented with another method.

  According to the present invention, the resin is promoted to reduce the weight and the price while providing an illumination function for illuminating the surgical field and the affected area, and the entire instrument is sterilized to a degree sufficient to prevent infection and the like. A resin surgical instrument can be provided.

It is a figure explaining the structure of the resin-made surgical instruments which concern on 1st Embodiment. It is a figure which shows the cross-sectional shape of a function part. It is a figure explaining the latching structure which adjusts the opening angle of a function part. It is a figure explaining the airtight accommodation chamber which is provided in an insert member accommodating part and can be opened and closed by a cap member. It is a figure explaining an insert type light source. It is a figure which shows an example of the structure sealed and hold | maintained with resin of an insert type light source. It is a figure explaining the structure of the resin-made surgical instruments which concern on 2nd Embodiment. It is a figure explaining the structure of the resin-made surgical instruments which concern on 3rd Embodiment. It is a figure explaining the structure of the resin-made surgical instruments which concern on 4th Embodiment. It is a figure which shows the cross-sectional shape of a fixed limb and a movable limb. It is a figure which shows the resin-made surgical instruments of the state sealed by the bag etc. FIG. It is a figure which shows an example of the charger which charges an insert type light source.

Hereinafter, the present invention will be described in the following order.
(1) First embodiment:
(2) Second embodiment:
(3) Third embodiment:
(4) Fourth embodiment:

(1) First embodiment:
FIG. 1 is a view for explaining the structure of a resin surgical instrument according to this embodiment. The resin surgical instrument 100 according to the present embodiment has a scissors-type retractor configuration.

  The resin surgical instrument 100 is formed integrally with a resin gripping part 10L, a resin functional part 20L formed integrally with the gripping part 10L, a resin gripping part 10R, and the gripping part 10R. The resin-made functional part 20R is provided. In the present embodiment, the gripping portions 10L and 10R constitute an insert member accommodating portion.

  In addition, since the holding part 10L and the holding part 10R, and the functional part 20L and the functional part 20R have substantially line-symmetric shapes, the following description will be made when the holding part 10L and the holding part 10R are described collectively. When the part 20L and the functional part 20R are described together, the symbols “L” and “R” are omitted, and are simply referred to as the gripping part 10, the functional part 20, and the like. Also, when describing the components of the gripping unit and functional unit, the symbols “L” and “R” are omitted in the same manner unless necessary.

  The functional portion 20L has a bent portion 21L bent in a “<” shape, and the functional portion 20R has a bent portion 21R bent in a “<” shape symmetrical with the functional portion 20L. In the functional portions 20L and 20R, the bent portions 21L and 21R are provided at any portion between the proximal end connected to the grip portion 10 and the bent portion 23 described later.

  The bent portion 21L and the bent portion 21R are overlapped so that the outsides of the “<”-shaped corners face each other, and the overlapped portion is pivotally supported by a shaft 22 and is connected to be rotatable relative to each other. Since the plastic surgical instrument 100 is pivotally supported in this way, when the gripping portions 10L and 10R are brought close to each other, the functional portions 20L and 20R on the distal end side with respect to the bent portions 21L and 21R with the shaft 22 as a fulcrum are mutually connected. When the gripping portions 10L and 10R are separated (opened) and moved away from each other, the functional portions 20L and 20R on the tip side of the bent portions 21L and 21R approach each other (close) with the shaft 22 as a fulcrum.

  The functional unit 20 has a bent portion 23 on the tip side of the shaft 22. The bent portion 23 is bent at a substantially right angle, and the bent portion 23L of the functional portion 20L and the bent portion 23R of the functional portion 20R are bent and extended in substantially the same direction so as to be substantially parallel to each other. The bending direction of the bent portions 23L and 23R is a direction substantially perpendicular to the extending direction of the functional portion 20 extending from the shaft 22 to the front of the bent portion 23, and with respect to the alignment direction of the functional portions 20L and 20R. It is also a substantially perpendicular direction.

  When the gripping portions 10L and 10R are brought closer to each other and the functional portions 20L and 20R on the distal end side away from the bent portions 23L and 23R are separated from each other, the distal end side portions of the bent portions 23L and 23R are located on the bent portions 23L and 23R. Since they are separated following the movement, the portions closer to the distal end than the bent portions 23L and 23R have substantially the same separation distance as a whole. Thereby, the site | part of the front end side rather than the bending parts 23L and 23R contact | abuts on the surface entirely with respect to the structure | tissue (retraction object tissue) of the both sides of a retracted site | part.

  A hook-like portion 24 is provided at the distal end portion of the bent portion 23. The hook-like portion 24 has a hook structure that bends toward the outside in the rotational direction of the functional portion 20 with the shaft 22 as a fulcrum. It is shaped so as to be hooked to the tissue to be wounded that abuts. In the example shown in FIG. 1, the flange portion 24 is a surface facing the outside in the rotation direction of the functional portion 20 with the shaft 22 as a fulcrum, and the distal end portion is outside in the rotation direction than the base portion of the flange portion 24. It is a shape protruding.

  FIG. 2 is a diagram illustrating a cross-sectional shape of the functional unit 20.

  The functional portion 20 has a U-shaped cross section at the tip end side relative to the shaft 22, and is formed with the U-shaped opening facing outward (opposite to the facing side of the functional portions 20L and 20R). ing. That is, the functional units 20L and 20R are in a state in which U-shaped outer curved surfaces (convex curved surfaces) face each other. Further, in the U-shaped groove of the functional unit 20, a ridge 25 extending along the inner bottom of the U-shaped groove is provided. By providing the ridges 25 on the bottom of the U-shaped groove, the strength of the functional unit 20 is improved. Further, the ridge 25 also functions as a light guide that guides light incident from the proximal end of the functional unit 20 to the distal end. The shape of the functional unit 20 is not limited to a U-shaped cross section. If the function of the functional unit 20 is improved and the function as a light guide can be realized, a round bar shape, a quadrangular prism shape, a U shape, Various shapes such as a mold shape can be adopted.

  FIG. 3 is a diagram illustrating a locking structure that adjusts the opening angle of the functional units 20L and 20R.

  A rack gear-like locking portion 26 that locks the functional portions 20L and 20R at a desired opening angle is provided at a position closer to the base end than the shaft 22 of the functional portion 20L. The locking portion 26 has a base 261 fixed to the back surface of the functional portion 20L, and extends along an arc centered on the shaft 22 along a surface along the back surface of the functional portion 20L and the back surface of the functional portion 20R. It has an arcuate portion 262.

  On the surface of the arc-shaped portion 262 (the surface facing the back surface of the functional portion 20R), a plurality of tooth protrusions 263 are formed at substantially equal intervals in the direction along the circumferential direction. The surface of the engagement protrusion 263 close to the base 261 fixed to the functional portion 20L is a standing wall 264 that is substantially perpendicular to the surface of the arc-shaped portion 262, and the surface far from the base 261 is a circle. A tapered wall 265 inclined with respect to the surface of the arc-shaped portion 262 is formed.

  On the other hand, the functional part 20 </ b> R has a plurality of tooth protrusions 273 formed at substantially equal intervals in the direction along the extending direction of the arc-shaped part 262 on the back surface (the surface facing the surface of the arc-shaped part 262). The tooth protrusion 273 is a standing wall 274 whose surface far from the functional part 20L is substantially perpendicular to the back surface of the functional part 20R, and whose surface near the functional part 20L is against the back surface of the functional part 20R. An inclined taper wall 275 is formed.

  The engagement protrusion 263 of the arc-shaped portion 262 and the engagement protrusion 273 on the back surface of the functional portion 20R are surfaces substantially orthogonal to the direction of the force with respect to the force applied in the direction in which the gripping portions 10L and 10R are separated from each other. Since the surfaces of the upright wall 264 and the upright wall 274 are pressed against each other, they are engaged with each other to resist the separation of the gripping portions 10L and 10R, and the force is applied in a direction to bring the gripping portions 10L and 10R closer to each other. On the other hand, the tapered wall 265 and the tapered wall 275 that are inclined with respect to the direction of the force are pressed against each other, so that the gripping portions 10L and 10R are allowed to approach each other by sliding.

  That is, with respect to the force applied in the direction in which the functional units 20L and 20R are brought closer to each other, the tooth protrusions 263 and 273 serve as a drag that inhibits the approach, and the current degree of separation of the functional units 20L and 20R is maintained. For the force applied in the direction in which the functional portions 20L and 20R are separated, the engagement protrusions 263 and 273 do not inhibit the separation, and the standing wall 264 of the engagement protrusions 263 and 273 becomes a certain degree of separation. , 274 can be maintained at the position where they face each other. When the function parts 20L and 20R are brought close to each other, the arcuate part 262 may be elastically bent so as to be separated from the back surface of the function part 20R so that the engagement protrusions 263 and 273 are not engaged with each other.

  FIG. 4 is a view for explaining a sealed housing chamber 11 provided in the insert member housing portion and openable / closable by a cap member.

  The gripping part 10 is a hollow cylindrical column, and can each accommodate an insert type light source part 30 as an insert member in a sealed housing chamber 11 inside the cylinder. In addition, the figure illustrates the gripping part 10 of the circular columnar body, and the circular columnar body also includes the sealed housing chamber 11 provided in the gripping unit 10 and the insert-type light source unit 30 housed in the sealed housing chamber 11. Are illustrated.

  It is desirable that the grip portion 10 has an outer shape that can be gripped by the user to obtain a good grip. For example, an anti-slip sheet may be attached to the surface of the grip portion 10 or an anti-slip process may be applied to further improve the grip performance.

  The gripping part 10 includes a closing part 12 that closes the hermetic housing chamber 11 at the bottom surface of the columnar body, and a cap member 13 that can be attached to and detached from the bottom surface on the tail end side of the pillar body. When the cap member 13 is attached to the grip 10, the sealed housing chamber 11 is sealed so that liquid does not enter. Thereby, the insert-type light source unit 30 accommodated in the hermetically sealed chamber 11 is not contaminated by body fluids or the like adhering to the outer surface of the resin surgical instrument 100.

  In the cap member 13, a protruding portion 132 made of a deformable elastic material such as rubber protrudes from the tail end side of the substantially cylindrical cap main body 131. The protrusion 132 has a cross-sectional hat shape that is cut along the axial direction of the gripping portions 10 </ b> L and 10 </ b> R, and a hook-shaped hook-shaped portion that protrudes inward from the tail end side opening of the cap body 131. Locked inside the portion 133. The inside of the portion of the protruding portion 132 protruding from the cap body 131 is hollow, and communicates with the hermetic housing chamber 11 inside the gripping portions 10L and 10R with the cap member 13 mounted on the gripping portions 10L and 10R. Yes. When the insert-type light source unit 30 is housed in the sealed housing chamber 11 and the cap member 13 is mounted on the gripping units 10L and 10R, the operation unit 341 of the switch unit 34 is positioned inside the protrusion 132. In this state, when the protruding portion 132 is pressed toward the distal end side along the axial direction of the gripping portions 10L and 10R, the protruding portion 132 is deformed and an operation such as pressing the internal operation portion 341 can be performed.

  The grip portion 10 is provided with a finger hook structure that can lock a finger. In the grip portion 10L, an annular finger insertion hole 14L is provided on the left side of the grip portion 10L. Similarly, an annular finger insertion hole 14R is provided on the right side of the grip 10R in the grip 10R. By providing the finger grip structure on the grip portion 10, the gripping easiness of the grip portions 10L and 10R is improved. As a result, when the functional units 20L and 20R are separated from each other to push the site to be opened, the doctor or an assistant grasps the grips 10L and 10R so as to bring the grips 10L and 10R closer to each other. However, since the finger insertion holes 14L and 14R are provided, the gripping position is difficult to shift.

  The functional unit 20 is integrally formed of a transparent resin, and guides light incident from the base end portion of the functional unit 20 to the bent portion 23 formed near the distal end of the functional unit 20 (the above-described U-shaped configuration). (Including protrusions 25 provided on the inner bottom of the groove). The closing part 12 of the grip part 10 is also integrated with the function part 20 and constitutes a part of the light guide.

  The insert-type light source unit 30 is disposed in the sealed housing chamber 11 with the light emitting surface facing the closing unit 12. For this reason, the light emission of the insert-type light source unit 30 accommodated in the hermetic housing chamber 11 passes through the blocking portion 12 and the functional portion 20 to the bent portion 23 and the hook-shaped portion 24 formed near the tip of the functional portion 20. Led.

  FIG. 5 is a diagram for explaining the insert-type light source unit 30.

  The insert-type light source unit 30 includes a battery holding recess 31, a battery 32 held in the battery holding recess 31, a circuit board 33 on which an LED (Light Emitting Diode) as a light source is mounted, and a power supply from the battery 32 to the circuit board 33. A switch unit 34 for switching voltage supply is provided. A small semiconductor laser may be employed instead of the LED.

  The insert-type light source unit 30 has a hollow cylindrical shape, and an opening 35 for inserting and removing the battery 32 into and from the battery holding recess 31 is formed on the side surface of the cylinder. Various types of batteries that can be accommodated in the battery holding recess 31 can be used as the battery 32. Therefore, regarding the shape of AA batteries / AA batteries / button cells, rechargeable / non-rechargeable, and electrode materials such as manganese / lithium ion / hydrogen, etc. It does not restrict | limit in particular, A various thing is employable.

  When a cylindrical cylindrical battery such as an AA type dry battery or an AAA type dry battery is adopted as the battery 32, the longitudinal direction is oriented in the direction along the cylinder axis of the insert type light source unit 30 and the battery 32 is disposed in the battery holding recess 31. Is done. The positive electrode terminal and the negative electrode terminal of the battery 32 are provided on the front end side wall and the tail end side wall of the battery holding recess 31, respectively, and are electrically connected via the switch unit 34 and the circuit board 33.

  The circuit board 33 is disposed closer to the tip than the battery holding recess 31 and inside the closing portion 36 in the cylinder of the insert type light source unit 30. The closing part 36 may be provided with a lens that converges the light emission of the LED into substantially parallel light. In the cylinder of the insert-type light source unit 30, the circuit board 33 is disposed so that the light emission direction of the LED faces the inner surface of the closing unit 36. For this reason, when the LED is turned on, the emitted light enters the closing portion 36 and is guided to the vicinity of the tip of the functional portion 20 through the closing portion 212 and the light guide path of the functional portion 20.

  The switch unit 34 is fixedly attached to the tail end of the insert type light source unit 30, and an operation unit 341 for switching on / off of the switch is exposed outside the insert type light source unit 30. The switch unit 34 can employ various known switch type switches, for example, a push button type or sensor type switch. The switch unit 34 has a waterproof structure in which moisture does not enter from the operation unit 341 side to the energization unit side.

  The insert-type light source unit 30 may have a structure in which the whole or main part including the battery 32 and the circuit board 33 is hermetically held with resin. In this case, when a non-rechargeable battery 32 is used, the insert type light source unit 30 including the battery 32 is made disposable, and when a rechargeable battery 32 is used, the battery 32 is charged for charging. The terminal is exposed to the outside and used as a rechargeable insert light source unit 30. The rechargeable insert-type light source unit 30 can charge the battery 32 using, for example, a charger shown in FIG. 12, and the same one insert-type light source unit 30 can be used over a long period of time.

  FIG. 6 is a diagram showing an example of the structure of the insert type light source unit 30 ′ in which the insert type light source unit 30 is hermetically held with resin. The insert type light source unit 30 ′ shown in this example can be manufactured by, for example, die slide injection (DSI) molding. In addition, since insert type light source part 30 'which sealed and held insert type light source part 30 with resin becomes thick compared with insert type light source part 30, when accommodating thin type insert type light source part 30 in sealed accommodation room 11 In comparison, the diameter of the hermetic housing chamber 11 is increased, or the insert-type light source unit 30 is formed thin in advance.

  In DSI molding, a hollow body having a complicated internal structure can be molded accurately and rapidly. That is, the first member and the second member are respectively produced by primary injection, and another member (for example, the above-described insert-type light source unit 30) is accommodated and disposed between the first member and the second member as necessary. In the state, the first member and the second member are joined by injection of a secondary resin. As a result, the entire or main part of the insert-type light source unit 30 is disposed in an internal cavity formed by combining the first member and the second member, and the entire or main part of the insert-type light source unit 30 is sealed with resin. Can hold.

  In the example shown in FIG. 6, the first cover body 40 as the first member has one hook-like portion 41 that is formed in a hook shape by dividing the hollow cylinder along the cylinder axis direction. The second cover body 50 has one hook-shaped part 51 formed in a hook shape by dividing the hollow cylinder along the cylinder axis direction. That is, when the concave portion 42 of the hook-shaped portion 41 and the concave portion 52 of the hook-shaped portion 51 face each other, a hollow cylinder structure is obtained. The hollow cylinder formed by combining the first cover body 40 and the second cover body 50 has a shape in which the side corresponding to the closed portion 12 from which the light of the insert type light source unit 30 is emitted is closed.

  The inner shape of the concave portion 42 of the bowl-shaped portion 41 and the concave portion 52 of the bowl-shaped portion 51 substantially matches the outer shape of the insert-type light source unit 30. Therefore, in a state where the recessed portion 42 of the bowl-shaped portion 41 and the recessed portion 52 of the bowl-shaped portion 51 face each other and the insert type light source unit 30 is arranged in a predetermined hollow cylindrical shape, the recess 42 and the bowl-shaped portion 41 of the bowl-shaped portion 41 are arranged. The inner surface of the concave portion 52 of the shaped portion 51 is in contact with the entire outer surface of the insert-type light source unit 30. That is, the insert-type light source unit 30 is configured so that the recess 42 of the bowl-shaped portion 41 and the recess 52 of the bowl-shaped portion 51 face each other and the insert-type light source unit 30 is arranged in a predetermined hollow cylindrical shape. 41 is held and fixed by the recess 42 of the 41 and the recess 52 of the bowl-shaped portion 51.

  The hook-like portion 41 and the hook-like portion 51 have grooves 43 and 53 into which resin flows along the edges that contact each other, and the concave portion 42 of the hook-like portion 41 and the concave portion 52 of the hook-like portion 51 face each other. In a state where the insert-type light source unit 30 is arranged in a predetermined hollow cylindrical shape, they are joined to each other by the resin poured into the grooves 43 and 53. Also, the hook-like portion 41 and the hook-like portion 51 are joined to the outer surface of the insert-type light source portion 30 by resin at a portion from the battery holding recess 31 to the switch portion 34. As a result, current-carrying components such as the battery 32 and the circuit board 33 are arranged in the closed space formed inside the hook-like portion 41 and the hook-like portion 51, and the operation of the waterproof-structure switch portion 34 is performed. The part 341 is exposed outside the closed space.

  Further, the hook-like portion 41 and the hook-like portion 51 are formed by embedding a terminal metal 44 penetrating a portion corresponding to the charging terminal of the insert-type light source portion 30 inside and outside. In a state of being sandwiched and fixed between the hook-shaped part 51 and the terminal-type metal 44 exposed to the outside of the insert-type light source part 30 ′, electric power can be supplied to the charging terminal of the insert-type light source part 30.

  The resin that forms the insert-type light source 30 and the bowl-shaped portions 41 and 51 is made of a heat-dissipating resin. For example, a resin containing a heat conductive filler such as a heat conductive carbon fiber as filler particles may be used. Further, the resin forming the insert type light source 30 and the bowl-shaped portions 41 and 51 has a resistance to plasma sterilization at least 2 to 3 times. Specifically, polyacetal, ethyl vinyl acetate (EVA), liquid crystal polymer, nylon (polyamide), polycarbonate, polyethylene, polyether ether ketone (PEEK), polyether imide, polymethyl methacrylate (PMMA), polyphenylene sulfone, polypropylene, Examples thereof include resins such as polystyrene, polyurethane, polyvinyl chloride (PVC), silicone elastomer, and PTFE (Teflon (registered trademark)).

  Thus, by making the insert type light source unit 30 and the bowl-shaped parts 41, 51 with a resin that can be sterilized by plasma, the insert type light source unit 30 hermetically accommodated in the bowl-shaped parts 41, 51 is sterilized and reused. Can be used. The insert-type light source unit 30 hermetically accommodated in the used bowl-shaped portions 41 and 51 is sterilized by a predetermined plasma sterilization apparatus, and then sealed in a bag or the like as shown in FIG. wait. Therefore, not only during the operation after setting the insert-type light source unit 30, 30 ′ in the sealed storage chamber 11, but also when setting the insert-type light source unit 30, 30 ′ in the sealed storage chamber 11 of the resin surgical instrument 100. In addition, the possibility that doctors and assistants touch unsterilized instruments can be reduced as much as possible. When the insert-type light source unit 30 is taken out of the bag and stored in the sealed storage chamber 11 or when the insert-type light source unit 30 is transferred from the sealed storage chamber 11 of another plastic surgical instrument, a doctor or an assistant It is desirable not to touch the insert type light source unit 30, and for example, the insert type light source unit 30 may be transferred using a jig as shown in FIG.

(2) Second embodiment:
FIG. 7 is a view for explaining the structure of the resin surgical instrument according to this embodiment. The resin surgical instrument 200 according to the present embodiment has a configuration of a retractor of a type that expands a hole of a human body in a direction substantially orthogonal to a direction in which a grasping portion extends.

  The resin surgical instrument 200 is formed integrally with a resin gripping part 210L, a resin functional part 220L formed integrally with the gripping part 210L, a resin gripping part 210R, and the gripping part 210R. The resin-made functional part 220R is provided.

  The functional part 220L has one shape (semi-funnel-shaped part 221L) obtained by cutting along the axial direction the funnel shape that gradually decreases in diameter as it approaches the tip, and the functional part 220R also has the same funnel shape in the axial direction. It has the other shape (semi-funnel portion 221R) cut along. The holding part 210L and the semi-funnel part 221L are connected by a connecting part 222L, and the holding part 210R and the semi-funnel part 221R are connected by a connecting part 222R.

  The connecting portion 222L has a bent portion 223L bent in a “<” shape, and the connecting portion 222R has a bent portion 223R bent in a “<” shape symmetrical to the connecting portion 222L. In the connecting portion 222L, the bent portion 223L is provided at any portion between the proximal end connected to the grip portion 210L and the distal end connected to the semi-funnel portion 221L. In the connecting portion 222R, the bent portion 223R is provided at any portion between the proximal end connected to the grip portion 210R and the distal end connected to the semi-funnel portion 221R.

  The bent portion 223L and the bent portion 223R are overlapped so that the outsides of the “<”-shaped corners face each other, and the overlapped portion is pivotally supported by a shaft 224 and is connected to be rotatable relative to each other. By being pivotally supported in this way, when the resin surgical instrument 200 brings the gripping portions 210L and 210R closer to each other, the functional portions 220L and 220R on the distal end side with respect to the bent portions 223L and 223R with the shaft 224 as the fulcrum When the gripping portions 210L and 210R are separated (opened) and moved away from each other, the functional portions 220L and 220R on the tip side of the bent portions 223L and 223R approach (close) each other with the shaft 224 as a fulcrum.

  In a state where the bent portions 223L and 223R are pivotally supported by the shaft 224, the cut surfaces of the half funnel portion 221L and the half funnel portion 221R face each other. For this reason, when the function parts 220L and 220R on the tip side of the bent parts 223L and 223R approach each other with the shaft 224 as a fulcrum (close), the cut surfaces of the half funnel part 221L and the half funnel part 221R are substantially in contact with each other. The semi-funnel portion 221L and the semi-funnel portion 221R form a substantially funnel shape. When the substantially funnel-shaped tip is inserted into the ear canal or nostril and the gripping portions 210L and 210R are brought close to each other, the semi-funnel-shaped portion 221L and the semi-funnel-shaped portion 221R are separated from each other (open) with the shaft 224 as a fulcrum. The ear canal can be expanded.

  The grip portion 210L and the grip portion 210R are connected by a string-like elastic member 225. Both ends of the elastic member 225 made of resin strips are fixed to the opposing surfaces of the gripping portions 210L and 210R, respectively, and an elastic force is applied in the direction of moving the gripping portions 210L and 210R away from each other. Both ends are fixed to the opposing surfaces of the gripping portions 210L and 210R in a bent state where an elastic force is generated. As a result, after gripping the gripping part 210L and the gripping part 210R so that the gripping force is relaxed, the gripping part 210L and the gripping part 210R are automatically separated from each other by the elastic force of the elastic member 225. That is, the semi-funnel-shaped portion 221L and the semi-funnel-shaped portion 221R approach each other, and the force that has widened the nostril and ear canal is automatically relieved.

  In the resin surgical instrument 200 according to the present embodiment, the grip portion 210L is a hollow cylindrical column, and the insert-type light source unit 30 can be accommodated in the sealed housing chamber 211 inside the tube. That is, the grip portion 210L has the same structure as the grip portions 10L and 10R according to the first embodiment described above.

  On the other hand, the gripping part 210R is composed of a rod-like member that is thinner than the gripping part 210L. The grip portion 210L is formed so as to extend along substantially the same direction as the extending direction of the connecting portion 222L, and the grip portion 210R extends in a direction away from the grip portion 210L different from the extending direction of the connecting portion 222R. It is formed as follows. That is, a certain angle (acute angle) is formed between the extending direction of the gripping part 210L and the extending direction of the gripping part 210R. This angle is selected according to the distance at which the semi-funnel portions 221L and 221R are desired to be separated when the grip portions 210L and 220R are gripped.

  In the sealed housing chamber 211 of the grip portion 210L, the same insert type light source unit 30 as that in the first embodiment described above is housed and used. The insert-type light source unit 30 is disposed in the sealed housing chamber 211 with the light emitting surface facing the blocking unit 212. For this reason, light emitted from the insert-type light source unit 30 housed in the sealed housing chamber 211 is guided to the semi-funnel portion 221 formed near the tip of the functional unit 220 through the blocking unit 212 and the functional unit 220.

(3) Third embodiment:
FIG. 8 is a view for explaining the structure of the resin surgical instrument according to this embodiment. The resin surgical instrument 300 according to the present embodiment has a configuration of a retractor of a type that expands a hole of a human body in a direction substantially the same as a direction in which a gripping portion extends.

  The resin surgical instrument 300 is formed integrally with a resin gripping part 310U, a resin functional part 320F formed integrally with the gripping part 310U, a resin gripping part 310L, and the gripping part 310L. The functional part 320B made of resin is provided.

  The functional portion 320F has one shape (semi-funnel-shaped portion 321F) obtained by cutting along the axial direction the funnel shape that gradually decreases in diameter as it approaches the tip, and the functional portion 320B also has the funnel shape in the axial direction. It has the other shape (semi-funnel part 321B) cut | disconnected along. The holding part 310U and the semi-funnel part 321F are connected by a connecting part 322U, and the holding part 310L and the semi-funnel-like part 321B are connected by a connecting part 322L.

  The gripping portion 310L is connected to the side surface of the semi-funnel-shaped portion 321B that gradually decreases in diameter via a connecting portion 322L, and the gripping portion 310U is connected to the large-diameter side edge of the semi-funnel-shaped portion 321F. They are connected via a coupling part 322U in a state of being oriented in a substantially orthogonal direction.

  The connecting portion 322L is a member that connects the large-diameter side edge of the semi-funnel-shaped portion 321F to the grip portion 310U, and is a frame-shaped member that extends along the outer periphery of the funnel-shaped opening of the other semi-funnel-shaped portion 321B. The grip portion 310U has a tip connected to a position farthest from the semi-funnel portion 321F.

  The grip portion 310U is formed of a bar member that is thinner than the grip portion 310L. The grip portion 310U is formed to extend in a direction away from the grip portion 310L, which is different from the extending direction of the grip portion 310L. That is, a certain angle (acute angle) is formed between the extending direction of the gripping part 310U and the extending direction of the gripping part 310L. This angle is selected according to the distance at which the semi-funnel portions 321F and 321B are desired to be separated when the grip portions 310U and 310L are gripped.

  The connecting portion 322U, which is a frame-shaped member, has a substantially funnel shape formed by the semi-funnel-shaped portion 321F and the semi-funnel-shaped portion 321B by causing the cut surfaces of the semi-funnel-shaped portion 321F and the semi-funnel-shaped portion 321B to substantially contact each other. In the state, shaft members 323L and 323R that pass through the connecting part 322U and the semi-funnel part 321B at two places on the upper edge of the semi-funnel part 321B close to the boundary between the semi-funnel part 321F and the semi-funnel part 321B. It is supported by.

  For this reason, the semi-funnel-shaped portions 321F and 321B have shaft members 323L. 323R can be rotated with respect to each other about the supporting shaft. Since the plastic surgical instrument 300 is pivotally supported in this way, when the gripping portions 310U and 310L are brought close to each other, the semi-funnel shaped portions 321F and 321B are separated from each other (open) with the shaft members 323L and 323R as fulcrums. When the gripping portions 310U and 310L are moved away from each other, the semi-funnel shaped portions 321F and 321B approach each other (close) with the shaft members 323L and 323R as fulcrums.

  That is, a certain angle (acute angle) is formed between the extending direction of the gripping part 310U and the extending direction of the gripping part 310L. This angle is selected according to the distance at which the semi-funnel portions 321F and 321B are desired to be separated when the grip portions 310U and 310L are gripped.

  The grip portion 310U and the grip portion 310L are connected by a string-like elastic member 324. Both ends of the elastic member 324 made of resin strips are fixed to the opposing surfaces of the gripping portions 310U and 310L, respectively, and an elastic force is applied in a direction away from the gripping portions 310U and 310L. Both ends are fixed to the opposing surfaces of the gripping portions 310U and 310L in a bent state where an elastic force is generated. As a result, after gripping the gripping part 310U and the gripping part 310L so that the gripping force is relaxed, the gripping part 310U and the gripping part 310L are automatically separated from each other by the elastic force of the elastic member 324. That is, the semi-funnel-shaped portion 321F and the semi-funnel-shaped portion 321B approach each other, and the force that has widened the nostril and ear canal is automatically relieved.

  In the resin surgical instrument 300 according to the present embodiment, the grip portion 310L is a hollow cylindrical column, and the insert-type light source unit 30 can be accommodated in the sealed housing chamber 311 inside the tube. That is, the grip portion 310L has the same structure as the grip portions 10L and 10R according to the first embodiment described above.

  The hermetic housing chamber 311 of the grip portion 310L accommodates and uses the same insert type light source unit 30 as that of the first embodiment described above. The insert-type light source unit 30 is disposed in the hermetic storage chamber 311 with the light emitting surface facing the blocking unit 312. For this reason, light emitted from the insert-type light source unit 30 housed in the sealed housing chamber 311 is guided to the semi-funnel portion 321B formed near the tip of the functional unit 320 through the blocking unit 312 and the functional unit 320.

(4) Fourth embodiment:
FIG. 9 is a diagram for explaining the structure of the resin surgical instrument according to the present embodiment. The resin surgical instrument 400 according to the present embodiment has a rectilinear configuration having a linear shaft portion and two limb portions extending substantially perpendicularly from the shaft portion. At least one of the two limbs is configured to be slidable while maintaining a state of being oriented substantially perpendicular to the shaft, and a fixing mechanism for fixing at any sliding position on the shaft. Have.

  The resin surgical instrument 400 is a resin sliding shaft 410 serving as a shaft portion, and is fixed to one end of the sliding shaft 410 so as to extend in a direction substantially perpendicular to the axial direction of the sliding shaft 410. A movable limb 430 that is slidably engaged with the limb 420 and the sliding shaft 410 and extends in a direction substantially parallel to the fixed limb 420 (a direction substantially perpendicular to the axial direction of the sliding shaft 410). Have.

  The sliding shaft 410 is provided with a base 421 formed integrally with the fixed limb 420 and a sliding member 431 formed integrally with the movable limb 430. A sliding shaft 410 is slidably inserted into the sliding hole 432 of the sliding member 431. The base of the fixed limb 420 is fixed to the base 421 in a state where the longitudinal direction is oriented in a direction substantially perpendicular to the axial direction of the sliding shaft 410. The base of the movable limb 430 is fixed to the sliding member 431 with the longitudinal direction oriented in a direction substantially perpendicular to the axial direction of the sliding shaft 410.

  In the state where force is applied in the direction in which the fixed limb 420 and the movable limb 430 are brought close to each other near the distal ends of the fixed limb 420 and the movable limb 430, the sliding shaft 410 is stressed in a direction different from the insertion direction. For this reason, it hardly contacts the inner surface of the sliding hole 432 so that it hardly slides. In this state, when the distance between the fixed limb 420 and the movable limb 430 is adjusted, the gear-shaped drive member 433 is rotated by a finger or the like, and the drive member 433 is rotated while being in contact with the sliding shaft 410, thereby driving. This is performed by sliding the movable limb 430 with respect to the sliding shaft 410 by the driving force generated by the member 433.

  When the movable limb 430 is slid on the sliding shaft 410 and fixed at an arbitrary position, the resin surgical instrument 400 configured as described above fixes the fixed limb 420 and the movable limb 430 at an arbitrary separation distance. be able to. In other words, by inserting the fixed limb 420 and the movable limb 430 into the retracting hole at the retracting control site and fixing them at an arbitrary separation distance, the retracting hole can be held at an arbitrary retracting width.

  The movable limb 430 is provided with a protrusion shape 434 having a rounded tip at the surface opposite to the side facing the fixed limb 420 (the surface in contact with the target tissue in the wound hole). The fixed limb 420 is also provided with a protruding shape 422 having a rounded tip at a surface opposite to the side facing the movable limb 430 (surface facing the target tissue in the wound hole). By providing the protrusion shapes 434 and 422, the resinous surgical instrument 400 is not intended when the fixed limb 420 and the movable limb 430 are locked to the tissue of the wound hole and the width of the wound hole is maintained. It can be prevented from coming off.

  FIG. 10 is a diagram showing cross-sectional shapes of the fixed limb 420 and the movable limb 430.

  The fixed limb 420 has a U-shaped cross-section substantially perpendicular to the longitudinal direction, and is formed with the U-shaped opening facing outward (the surface opposite to the side facing the movable limb 430). . Similarly, the movable limb 430 has a U-shaped cross-section substantially perpendicular to the longitudinal direction, and the U-shaped opening is formed outward (a surface opposite to the side facing the fixed limb 420). Has been. That is, the fixed limb 420 and the movable limb 430 are in a state in which U-shaped outer curved surfaces (convex curved surfaces) face each other.

  In the U-shaped groove of the fixed limb 420, a ridge 424 extending along the inner bottom of the U-shaped groove is provided. Similarly, a ridge 435 extending along the inner bottom of the U-shaped groove is also provided in the U-shaped groove of the movable limb 430. The strength of the fixed limb 420 and the movable limb 430 is improved by providing the ridges 424 and 435 at the bottom of the U-shaped groove. Further, the ridge 424 functions as a light guide for guiding light incident from the proximal end of the fixed limb 420 to the distal end, and the ridge 435 functions as a light guide for guiding light incident from the proximal end of the movable limb 430 to the distal end. The shapes of the fixed limbs 420 and the movable limbs 430 are not limited to the U-shaped cross section. If the functions of the light guides can be realized while improving the strength of the fixed limbs 420 and the movable limbs 430, the shapes of the round limbs and the square pillars Various shapes such as a shape, a U-shape, and an H shape can be adopted.

  The base 421 is connected to a hollow cylindrical column having a sealed housing chamber 423 in which the insert type light source unit 30 can be housed on the side opposite to the side to which the fixed limb 420 is connected. Similarly, the sliding member 431 is provided with a hollow cylindrical column body in which a sealed housing chamber 436 capable of housing the insert-type light source unit 30 is formed on the side opposite to the side to which the movable limb 430 is connected. It has been. In these sealed housing chambers 423 and 436, the same insert type light source unit 30 as that in the first embodiment described above can be housed.

  The sliding shaft 410, the sliding member 431, the base 421, the fixed limb 420, and the movable limb 430 are made of a transparent resin.

  The light emitted from the insert-type light source unit 30 housed in the sealed housing chamber 423 passes through the base 421 and the sliding shaft 410 and enters the base end of the fixed limb 420, and more preferably, the U-shaped light of the fixed limb 420. The light enters the base end of the ridge 424 extending along the groove bottom. Similarly, light emitted from the insert-type light source unit 30 housed in the sealed housing chamber 436 passes through the sliding member 431 and the sliding shaft 410 and enters the proximal end of the movable limb 430, and more preferably, the movable limb 430. It enters the base end of the ridge 435 extending along the inner bottom of the U-shaped groove. Thereby, light is guided to the tips of the fixed limb 420 and the movable limb 430.

  Note that the present invention is not limited to the above-described embodiments, and includes configurations in which the configurations disclosed in the above-described embodiments are mutually replaced or combinations are changed, known techniques, and the above-described embodiments. Also included are configurations in which the configurations disclosed in 1 are replaced with each other or combinations are changed. Further, the technical scope of the present invention is not limited to the above-described embodiments, but extends to the matters described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Grasping part, 10L ... Grasping part, 10R ... Grasping part, 11 ... Sealed storage chamber, 12 ... Closure part, 13 ... Cap member, 14L ... Finger insertion hole, 14R ... Finger insertion hole, 20 ... Functional part, 20L ... Function part, 20R ... Function part, 21 ... Bending part, 21L ... Bending part, 21R ... Bending part, 22 ... Axis, 23 ... Bending part, 24 ... Bridged part, 25 ... Convex, 26 ... Locking part, 30 DESCRIPTION OF SYMBOLS ... Insert type light source part, 30 '... Insert type light source part, 31 ... Battery holding recessed part, 32 ... Battery, 33 ... Circuit board, 34 ... Switch part, 35 ... Opening, 36 ... Closure part, 40 ... 1st cover body, 41: flange-shaped portion, 42: recessed portion, 43 ... flange portion, 44 ... flange portion, 50 ... second cover body, 51 ... hook-shaped portion, 52 ... recessed portion, 53 ... flange portion, 54 ... flange portion, 61 ... first 1 cylinder flange, 62 ... second cylinder flange, 100 ... plastic surgery 200 ... resin surgical instrument, 210L ... gripping part, 210R ... gripping part, 211 ... sealed storage chamber, 212 ... occlusion part, 220 ... functional part, 220L ... functional part, 220R ... functional part, 221 ... half funnel shape Part, 221L ... semi-funnel part, 221R ... semi-funnel part, 222R ... connecting part, 223L ... bent part, 223R ... bent part, 224 ... shaft, 225 ... elastic member, 261 ... base part, 262 ... arc-shaped part, 263 ... toothed protrusion, 264 ... standing wall, 265 ... tapered wall, 273 ... toothed protrusion, 274 ... standing wall, 275 ... tapered wall, 300 ... resin surgical instrument, 310U ... gripping part, 310L ... gripping part, 311 ... sealed Storage chamber, 312 ... Blocking part, 320 ... Functional part, 320B ... Functional part, 320F ... Functional part, 321B ... Semi-funnel-like part, 321F ... Semi-funnel-like part, 322U ... Connecting part, 323L ... Shaft member, 23R: Shaft member, 324: Elastic member, 341: Operation unit, 400: Resin surgical instrument, 410: Sliding shaft, 420 ... Fixed limb, 421 ... Base, 422 ... Projection shape, 423 ... Sealed storage chamber, 424 ... ridges, 430 ... movable limbs, 431 ... sliding members, 432 ... sliding holes, 433 ... fixed members, 434 ... projection shapes, 435 ... ridges, 436 ... sealed housings

Claims (5)

A resin-made insert member accommodating portion; a surgical function portion extending from the tip of the insert member accommodating portion; a sealed accommodating chamber provided in the insert member accommodating portion and freely openable and closable by a cap member; and the sealed accommodating chamber An insert member accommodated in
The surgical function part is formed of a transparent resin,
The insert member includes a circuit board on which a light emitting diode is mounted and a battery for supplying power to the circuit board,
A resin guide characterized in that a light guide path extending from the distal end of the sealed storage chamber through the transparent resin of the surgical function portion guides the emitted light of the light emitting diode of the insert member to the distal end portion of the surgical function portion. Surgical instruments. In the insert member, the whole or main part including the battery and the circuit board is hermetically held with a heat-dissipating resin,
The resin surgical instrument according to claim 1, wherein:   The resin surgical instrument according to claim 1 or 2, wherein the insert member accommodating portion is a scissors-type retractor provided in a grasping portion.   The resin surgical instrument according to claim 1 or 2, wherein the insert member accommodating portion is an otolaryngological opener provided in at least one of the gripping portions. A retractor having a linear shaft portion and two limb portions extending substantially perpendicularly from the shaft portion as the resin functional portion, wherein at least one of the two limb portions is the shaft portion. The shaft portion is configured to be slidable while maintaining a state of being substantially perpendicularly oriented, and has a fixing mechanism for fixing at an arbitrary sliding position on the shaft portion,
The resin surgical instrument according to claim 1, wherein the insert member accommodating portion is connected to the limb-like portion on the opposite side across the shaft portion.

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